CVE-2026-100819

CRITICAL Status: Received

CVSS Scores

CVSS v3.x Base Score

9.6

CRITICAL

Description

Sandbox escape due to incorrect boundary conditions in the XPCOM component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

Published

September 29, 2026 1:17 PM

Last Modified

September 29, 2026 3:17 PM

Source

[email protected]

Weaknesses (CWE)

CWE-119

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2071069
https://www.mozilla.org/security/advisories/mfsa2026-100/
https://www.mozilla.org/security/advisories/mfsa2026-97/
https://www.mozilla.org/security/advisories/mfsa2026-98/
https://www.mozilla.org/security/advisories/mfsa2026-99/

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