CVE-2026-100811

CRITICAL Status: Received

CVSS Scores

CVSS v3.x Base Score

9.6

CRITICAL

Description

Sandbox escape due to use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, 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-416

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2067973
https://www.mozilla.org/security/advisories/mfsa2026-100/
https://www.mozilla.org/security/advisories/mfsa2026-97/
https://www.mozilla.org/security/advisories/mfsa2026-99/

Contact Us

Get the CyboWatch SIEM platform, hosting, and 24×7 SOC analysts. Call or email us to get started.

+91-9229434143 [email protected]