CVEvulnerability
CVE-2026-12330
5.4 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-16
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-119
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.
Affected configurations
• mozilla firefox (< 115.37.0)
• mozilla firefox (>= 140.0 < 140.12.0)
• mozilla thunderbird (>= 140.0 < 140.12.0)
Related
Weakness · CWE (1)
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2029326 Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2026-58/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-59/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-61/ Vendor Advisory