CVE-2026-5732

HIGH CVSS 8.8 View on NVD ↗

Description

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 140.9.1, Thunderbird < 149.0.2, and Thunderbird < 140.9.1.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products

mozilla/firefox

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2017867
https://www.mozilla.org/security/advisories/mfsa2026-25/
https://www.mozilla.org/security/advisories/mfsa2026-27/
https://www.mozilla.org/security/advisories/mfsa2026-28/
https://www.mozilla.org/security/advisories/mfsa2026-29/

Published: Apr 07, 2026 13:16 UTC Modified: Apr 07, 2026 19:16 UTC