CVE-2026-12330

medium

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.

References

https://www.mozilla.org/security/advisories/mfsa2026-61/

https://www.mozilla.org/security/advisories/mfsa2026-59/

https://www.mozilla.org/security/advisories/mfsa2026-58/

https://bugzilla.mozilla.org/show_bug.cgi?id=2029326

Details

Source: Mitre, NVD

Published: 2026-06-16

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 5.4

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