CVE-2026-53268 (GCVE-0-2026-53268)
Vulnerability from cvelistv5 – Published: 2026-06-25 08:39 – Updated: 2026-06-28 06:41
VLAI?
Title
netfilter: conntrack_irc: fix possible out-of-bounds read
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack_irc: fix possible out-of-bounds read
When parsing fails after we've matched the command string we
should bail out instead of trying to match a different command.
This helper should be deprecated, given prevalence of TLS I doubt it has
any relevance in 2026.
Severity ?
8.2 (High)
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
869f37d8e48f3911eb70f38a994feaa8f8380008 , < 4cdda7f868f48e2f81579371584fdbdce37df2c8
(git)
Affected: 869f37d8e48f3911eb70f38a994feaa8f8380008 , < 8a1d6e40dedfe1068aee094d851bd69e289c9fd6 (git) Affected: 869f37d8e48f3911eb70f38a994feaa8f8380008 , < 0afc802160af0df61ed374fdb97fb34cfe5cdf2f (git) Affected: 869f37d8e48f3911eb70f38a994feaa8f8380008 , < 7c34f91305292083253df6a9f6c8ede02d4ccaea (git) Affected: 869f37d8e48f3911eb70f38a994feaa8f8380008 , < ddddd8271359961e403d11c90c9ba9fc38914f7e (git) Affected: 869f37d8e48f3911eb70f38a994feaa8f8380008 , < 9e5da2379f968a3ea5a6e38921ab6201576466dc (git) Affected: 869f37d8e48f3911eb70f38a994feaa8f8380008 , < 573810f61bcd6b6815e2ff53bbdd2b9c9d747176 (git) Affected: 869f37d8e48f3911eb70f38a994feaa8f8380008 , < 66eba0ffce3b7e11449946b4cbbef8ea36112f56 (git) |
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{
"containers": {
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"programFiles": [
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"versions": [
{
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"version": "2.6.20"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.259",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.210",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.176",
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},
{
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"version": "6.6.143",
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},
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"version": "6.12.94",
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},
{
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"version": "6.18.36",
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},
{
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}
],
"cpeApplicability": [
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"descriptions": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: conntrack_irc: fix possible out-of-bounds read\n\nWhen parsing fails after we\u0027ve matched the command string we\nshould bail out instead of trying to match a different command.\n\nThis helper should be deprecated, given prevalence of TLS I doubt it has\nany relevance in 2026."
}
],
"metrics": [
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"cvssV3_1": {
"baseScore": 8.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
"version": "3.1"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-28T06:41:12.729Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
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"url": "https://git.kernel.org/stable/c/8a1d6e40dedfe1068aee094d851bd69e289c9fd6"
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{
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{
"url": "https://git.kernel.org/stable/c/7c34f91305292083253df6a9f6c8ede02d4ccaea"
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{
"url": "https://git.kernel.org/stable/c/ddddd8271359961e403d11c90c9ba9fc38914f7e"
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{
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{
"url": "https://git.kernel.org/stable/c/66eba0ffce3b7e11449946b4cbbef8ea36112f56"
}
],
"title": "netfilter: conntrack_irc: fix possible out-of-bounds read",
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"assignerShortName": "Linux",
"cveId": "CVE-2026-53268",
"datePublished": "2026-06-25T08:39:54.511Z",
"dateReserved": "2026-06-09T07:44:35.395Z",
"dateUpdated": "2026-06-28T06:41:12.729Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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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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