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CERTFR-2026-AVI-0764
Vulnerability from certfr_avis - Published: 2026-06-17 - Updated: 2026-06-17
De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | N/A | Firefox ESR versions antérieures à 140.12 | ||
| Mozilla | N/A | Thunderbird ESR versions antérieures à 140.12 | ||
| Mozilla | N/A | Firefox for iOS versions antérieures à 152.0 | ||
| Mozilla | N/A | Firefox versions antérieures à 152 | ||
| Mozilla | N/A | Thunderbird versions antérieures à 152 | ||
| Mozilla | N/A | Firefox ESR versions antérieures à 115.37 |
References
| Title | Publication Time | Tags | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 140.12",
"product": {
"name": "N/A",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird ESR versions ant\u00e9rieures \u00e0 140.12",
"product": {
"name": "N/A",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox for iOS versions ant\u00e9rieures \u00e0 152.0",
"product": {
"name": "N/A",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox versions ant\u00e9rieures \u00e0 152",
"product": {
"name": "N/A",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 152",
"product": {
"name": "N/A",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 115.37",
"product": {
"name": "N/A",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-12324",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12324"
},
{
"name": "CVE-2026-12318",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12318"
},
{
"name": "CVE-2026-53899",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53899"
},
{
"name": "CVE-2026-12299",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12299"
},
{
"name": "CVE-2026-12300",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12300"
},
{
"name": "CVE-2026-12297",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12297"
},
{
"name": "CVE-2026-12308",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12308"
},
{
"name": "CVE-2026-12322",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12322"
},
{
"name": "CVE-2026-12320",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12320"
},
{
"name": "CVE-2026-12304",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12304"
},
{
"name": "CVE-2026-12315",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12315"
},
{
"name": "CVE-2026-12314",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12314"
},
{
"name": "CVE-2026-12301",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12301"
},
{
"name": "CVE-2026-12328",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12328"
},
{
"name": "CVE-2026-12326",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12326"
},
{
"name": "CVE-2026-12305",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12305"
},
{
"name": "CVE-2026-12289",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12289"
},
{
"name": "CVE-2026-12309",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12309"
},
{
"name": "CVE-2026-12321",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12321"
},
{
"name": "CVE-2026-12323",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12323"
},
{
"name": "CVE-2026-12290",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12290"
},
{
"name": "CVE-2026-12295",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12295"
},
{
"name": "CVE-2026-12330",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12330"
},
{
"name": "CVE-2026-12312",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12312"
},
{
"name": "CVE-2026-12306",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12306"
},
{
"name": "CVE-2026-12310",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12310"
},
{
"name": "CVE-2026-12303",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12303"
},
{
"name": "CVE-2026-12311",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12311"
},
{
"name": "CVE-2026-12293",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12293"
},
{
"name": "CVE-2026-12296",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12296"
},
{
"name": "CVE-2026-12329",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12329"
},
{
"name": "CVE-2026-12327",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12327"
},
{
"name": "CVE-2026-12294",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12294"
},
{
"name": "CVE-2026-12313",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12313"
},
{
"name": "CVE-2026-12298",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12298"
},
{
"name": "CVE-2026-12316",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12316"
},
{
"name": "CVE-2026-12291",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12291"
},
{
"name": "CVE-2026-53900",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53900"
},
{
"name": "CVE-2026-12325",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12325"
},
{
"name": "CVE-2026-12307",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12307"
},
{
"name": "CVE-2026-12302",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12302"
},
{
"name": "CVE-2026-12319",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12319"
},
{
"name": "CVE-2026-12317",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12317"
},
{
"name": "CVE-2026-12292",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12292"
}
],
"initial_release_date": "2026-06-17T00:00:00",
"last_revision_date": "2026-06-17T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0764",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-06-17T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Mozilla. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, une \u00e9l\u00e9vation de privil\u00e8ges et un d\u00e9ni de service \u00e0 distance.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mozilla",
"vendor_advisories": [
{
"published_at": "2026-06-16",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-56",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-56/"
},
{
"published_at": "2026-06-16",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-60",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-60/"
},
{
"published_at": "2026-06-16",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-61",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-61/"
},
{
"published_at": "2026-06-16",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-59",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-59/"
},
{
"published_at": "2026-06-16",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-58",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-58/"
},
{
"published_at": "2026-06-16",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-57",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-57/"
}
]
}
CVE-2026-12294 (GCVE-0-2026-12294)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 12:05
VLAI?
EPSS
Title
Sandbox escape in the DOM: Workers component
Summary
Sandbox escape in the DOM: Workers component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity ?
9.6 (Critical)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ 140.* (rpm) Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Quy Pham
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"url": "https://www.mozilla.org/security/advisories/mfsa2026-57/"
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{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-58/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-59/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-60/"
},
{
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"datePublished": "2026-06-16T11:52:27.895Z",
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CVE-2026-12290 (GCVE-0-2026-12290)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 12:05
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity ?
8.1 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ 140.* (rpm) Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
jayjayjazz
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CVE-2026-12296 (GCVE-0-2026-12296)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 12:05
VLAI?
EPSS
Title
Sandbox escape in the Security: Process Sandboxing component
Summary
Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
9.6 (Critical)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Yaqoub Aldurayhim
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CVE-2026-12298 (GCVE-0-2026-12298)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 12:05
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
5.4 (Medium)
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Haruka Yamazaki
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CVE-2026-12323 (GCVE-0-2026-12323)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI?
EPSS
Title
Spoofing issue in the DOM: Core & HTML component
Summary
Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
5.4 (Medium)
CWE
- CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Jody Ritonga
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CVE-2026-12308 (GCVE-0-2026-12308)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
5.3 (Medium)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
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|||||||
|
|||||||||
Credits
Mihalis Haatainen
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CVE-2026-12302 (GCVE-0-2026-12302)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 17:30
VLAI?
EPSS
Title
Mitigation bypass in the DOM: Security component
Summary
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity ?
6.5 (Medium)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ 140.* (rpm) Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
lebr0nli
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CVE-2026-12327 (GCVE-0-2026-12327)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:53 – Updated: 2026-06-17 11:08
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox ESR 140.12, Thunderbird ESR 140.12, Firefox 152 and Thunderbird 152
Summary
Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
8.1 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Christian Holler, Jens Stutte, Nika Layzell, Randell Jesup, Tom Schuster and the Mozilla Fuzzing Team
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CVE-2026-12325 (GCVE-0-2026-12325)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI?
EPSS
Title
Denial-of-service in the Graphics: ImageLib component
Summary
Denial-of-service in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity ?
6.5 (Medium)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ 140.* (rpm) Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Securin
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CVE-2026-12312 (GCVE-0-2026-12312)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
7.5 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Rintaro Kawasugi
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CVE-2026-12315 (GCVE-0-2026-12315)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 18:26
VLAI?
EPSS
Title
Mitigation bypass in the DOM: Security component
Summary
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
9.1 (Critical)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Nguyen Minh
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CVE-2026-12303 (GCVE-0-2026-12303)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI?
EPSS
Title
Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component
Summary
Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
4.3 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Michal Andryskowski
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CVE-2026-12318 (GCVE-0-2026-12318)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 18:07
VLAI?
EPSS
Title
Incorrect boundary conditions in the Libraries component in NSS
Summary
Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
7.3 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Haruto Kimura
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CVE-2026-12293 (GCVE-0-2026-12293)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 03:18
VLAI?
EPSS
Title
Use-after-free in the Graphics: WebGPU component
Summary
Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
superhei
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CVE-2026-12299 (GCVE-0-2026-12299)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 12:05
VLAI?
EPSS
Title
JIT miscompilation in the DOM: Core & HTML component
Summary
JIT miscompilation in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity ?
5.4 (Medium)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ 140.* (rpm) Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Hyeonjun Ahn
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CVE-2026-12289 (GCVE-0-2026-12289)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 12:05
VLAI?
EPSS
Title
Privilege escalation in the Graphics: WebRender component
Summary
Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity ?
8.8 (High)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ 140.* (rpm) Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
choeseyeong
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CVE-2026-53899 (GCVE-0-2026-53899)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:53 – Updated: 2026-06-16 15:44
VLAI?
EPSS
Title
Cross-origin cookies could be leaked when opening a PDF link
Summary
Firefox for iOS used partial domain matching when attaching cookies to PDF requests, allowing a malicious site on a suffix domain to receive cookies belonging to the target site. This vulnerability was fixed in Firefox for iOS 152.0.
Severity ?
6.5 (Medium)
CWE
- CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mozilla | Firefox for iOS |
Unaffected:
152.0 , ≤ *
(rpm)
|
Credits
Muneaki Nishimura
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CVE-2026-12313 (GCVE-0-2026-12313)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI?
EPSS
Title
Information disclosure, sandbox escape in the Security: Process Sandboxing component
Summary
Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
4.7 (Medium)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
evyatar
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CVE-2026-12330 (GCVE-0-2026-12330)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:53 – Updated: 2026-06-16 16:08
VLAI?
EPSS
Title
Incorrect boundary conditions in the Internationalization component
Summary
Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12.
Severity ?
5.4 (Medium)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Mozilla Fuzzing Team
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CVE-2026-12300 (GCVE-0-2026-12300)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
5.3 (Medium)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Niklas
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CVE-2026-12322 (GCVE-0-2026-12322)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
EPSS
Title
Clickjacking issue in the Widget: Gtk component
Summary
Clickjacking issue in the Widget: Gtk component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
5.4 (Medium)
CWE
- CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Abdan Alkayyis
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CVE-2026-12309 (GCVE-0-2026-12309)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
6.5 (Medium)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Yaqoub Aldurayhim
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CVE-2026-12314 (GCVE-0-2026-12314)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
7.5 (High)
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
satyamasd
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CVE-2026-53900 (GCVE-0-2026-53900)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:53 – Updated: 2026-06-16 14:37
VLAI?
EPSS
Title
Cookie injection was possible when opening a PDF link
Summary
Firefox for iOS preserved cookies set on the initial PDF request across cross-origin HTTP redirects in TemporaryDocument, allowing a malicious site to inject arbitrary cookies into requests to an unrelated target domain. This vulnerability was fixed in Firefox for iOS 152.0.
Severity ?
4.3 (Medium)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mozilla | Firefox for iOS |
Unaffected:
152.0 , ≤ *
(rpm)
|
Credits
Muneaki Nishimura
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CVE-2026-12305 (GCVE-0-2026-12305)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
7.5 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Zijie Zhao
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CVE-2026-12317 (GCVE-0-2026-12317)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
7.5 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Frédéric Wang Nélar
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CVE-2026-12326 (GCVE-0-2026-12326)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 03:17
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox 152 and Thunderbird 152
Summary
Memory safety bugs present in Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
8.1 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Ashley Zebrowski, Christian Holler, Dan Baker, Jan de Mooij, Jon Coppeard, Maurice Dauer, Nicolas B. Pierron, Nika Layzell, Randell Jesup, Rob Wu, Ryan Hunt, Steve Fink, Tom Schuster, Tomoya Nakanishi, Yannis Juglaret, Serge Guelton and the Mozilla Fuzzing Team
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CVE-2026-12324 (GCVE-0-2026-12324)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:11
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics: CanvasWebGL component
Summary
Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
7.3 (High)
CWE
- CWE-703 - Improper Check or Handling of Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Mihalis Haatainen
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CVE-2026-12329 (GCVE-0-2026-12329)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:53 – Updated: 2026-06-30 12:05
VLAI?
EPSS
Title
Memory safety bug fixed in Thunderbird ESR 140.12
Summary
Memory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and Thunderbird 140.12.
Severity ?
5.3 (Medium)
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Michael Froman
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CVE-2026-12320 (GCVE-0-2026-12320)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI?
EPSS
Title
Information disclosure in the Password Manager component
Summary
Information disclosure in the Password Manager component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
4.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Av0id
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CVE-2026-12311 (GCVE-0-2026-12311)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI?
EPSS
Title
Information disclosure, sandbox escape in the Security: Process Sandboxing component
Summary
Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
4.7 (Medium)
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Yaqoub Aldurayhim
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CVE-2026-12319 (GCVE-0-2026-12319)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI?
EPSS
Title
Denial-of-service in the Audio/Video: Playback component
Summary
Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
6.5 (Medium)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
jmwebdevelopement
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CVE-2026-12291 (GCVE-0-2026-12291)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 12:05
VLAI?
EPSS
Title
Use-after-free in the Networking: HTTP component
Summary
Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity ?
8.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ 140.* (rpm) Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Zijie Zhao
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CVE-2026-12307 (GCVE-0-2026-12307)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
5.3 (Medium)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Atsushi Sada
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CVE-2026-12297 (GCVE-0-2026-12297)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 12:05
VLAI?
EPSS
Title
Sandbox escape due to incorrect boundary conditions in the Networking component
Summary
Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity ?
9.6 (Critical)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ 140.* (rpm) Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
zx
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CVE-2026-12321 (GCVE-0-2026-12321)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 16:08
VLAI?
EPSS
Title
JIT miscompilation in the JavaScript: WebAssembly component
Summary
JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
5.4 (Medium)
CWE
- CWE-670 - Always-Incorrect Control Flow Implementation
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
JunYoung Park
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CVE-2026-12304 (GCVE-0-2026-12304)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 18:55
VLAI?
EPSS
Title
Same-origin policy bypass in the Networking: Cookies component
Summary
Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
9.1 (Critical)
CWE
- CWE-346 - Origin Validation Error
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Yaqoub Aldurayhim
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CVE-2026-12328 (GCVE-0-2026-12328)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:53 – Updated: 2026-06-30 12:05
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox ESR 115.37, Firefox ESR 140.12, Thunderbird ESR 140.12, Firefox 152 and Thunderbird 152
Summary
Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity ?
8.1 (High)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ 140.* (rpm) Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Andrew McCreight, Randell Jesup, Tom Ritter and the Mozilla Fuzzing Team
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CVE-2026-12295 (GCVE-0-2026-12295)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 12:05
VLAI?
EPSS
Title
Sandbox escape in the DOM: Navigation component
Summary
Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity ?
9.6 (Critical)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.37 , ≤ 115.*
(rpm)
Unaffected: 140.12 , ≤ 140.* (rpm) Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Yaqoub Aldurayhim
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CVE-2026-12306 (GCVE-0-2026-12306)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
5.3 (Medium)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
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|||||||
|
|||||||||
Credits
Mihalis Haatainen
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CVE-2026-12310 (GCVE-0-2026-12310)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
7.5 (High)
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
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|||||||
|
|||||||||
Credits
Carl Pearson
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CVE-2026-12316 (GCVE-0-2026-12316)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-16 18:24
VLAI?
EPSS
Title
Mitigation bypass in the DOM: Security component
Summary
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
9.1 (Critical)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Frederik Braun
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CVE-2026-12292 (GCVE-0-2026-12292)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-30 12:05
VLAI?
EPSS
Title
Incorrect boundary conditions in the Web Audio component
Summary
Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Severity ?
8.1 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.12 , ≤ 140.*
(rpm)
Unaffected: 152 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Zijie Zhao
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CVE-2026-12301 (GCVE-0-2026-12301)
Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
EPSS
Title
Memory safety bug fixed in Firefox 152
Summary
Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
Severity ?
5.3 (Medium)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
152 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Richard Belisle
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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