CVE-2026-12330

MEDIUM CVSS 5.4 View on NVD ↗

Description

Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12.

CVSS Vector

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

Affected Products

mozilla/firefox mozilla/thunderbird

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2029326
https://www.mozilla.org/security/advisories/mfsa2026-58/
https://www.mozilla.org/security/advisories/mfsa2026-59/
https://www.mozilla.org/security/advisories/mfsa2026-61/

Published: Jun 16, 2026 13:16 UTC Modified: Jun 16, 2026 20:56 UTC