CVEvulnerability
CVE-2026-100828
9.6 CRITICAL
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-29
- Last modified
- 2026-10-13
- 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-693
Description
Mitigation bypass in the Bookmarks & History component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.
Affected configurations
• mozilla firefox (< 153.4.0)
• mozilla firefox (>= 154.0.0 < 157.0.0)
• mozilla thunderbird (< 153.4.0)
• mozilla thunderbird (>= 154.0 < 157.0)
Related
Weakness · CWE (1)
- CWE-693 Protection Mechanism Failure weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2066019 Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2026-100/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-101/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-103/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-97/ Vendor Advisory