CVEvulnerability
CVE-2026-109740
9.6 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2026-10-13
- Last modified
- 2026-10-19
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.6 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-119
Description
Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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=2057113 bugzilla.mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-106/ www.mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-108/ www.mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-109/ www.mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-110/ www.mozilla.org