CVE-2026-12314 (GCVE-0-2026-12314)

Vulnerability from cvelistv5 – Published: 2026-06-16 11:52 – Updated: 2026-06-18 18:00
VLAI?
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)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-416 - Use After Free
  • CWE-787 - Out-of-bounds Write
  • CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox Unaffected: 140.12 , ≤ 140.* (rpm)
Unaffected: 152 , ≤ * (rpm)
Create a notification for this product.
    Mozilla Thunderbird Unaffected: 140.12 , ≤ 140.* (rpm)
Unaffected: 152 , ≤ * (rpm)
Create a notification for this product.
Credits
satyamasd
Show details on NVD website
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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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