CVEvulnerability

CVE-2026-118021

Published 2026-10-27 Modified 2026-10-27 Official page ↗

Status: Deferred
Published: 2026-10-27
Last modified: 2026-10-27
Assigner: [email protected]

Description

Sandbox escape due to use-after-free in the XPCOM component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2076695 bugzilla.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2026-118/ www.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2026-121/ www.mozilla.org