CVE-2026-118009

Description

Integer overflow, use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2076098
• https://www.mozilla.org/security/advisories/mfsa2026-118/
• https://www.mozilla.org/security/advisories/mfsa2026-121/