CVE-2026-4696

Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Score
CVSS 3.1 9.8 Critical
Status
Modified - security@mozilla.org
Published
2026-03-24
Last modified
2026-07-15
Weaknesses
CWE-416, CWE-825

Affected products

References

 
 
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