CVEvulnerability
CVE-2026-74965
8.8 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-08-18
- Last modified
- 2026-08-21
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-269
Description
Privilege escalation in the Shell Integration component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
Affected configurations
• mozilla firefox (< 140.14.0)
• mozilla firefox (< 154.0.0)
• mozilla firefox 153.0
• mozilla thunderbird (< 140.14.0)
• mozilla thunderbird (< 154.0)
• mozilla thunderbird (>= 153.0 < 153.1.0)
Related
Weakness · CWE (1)
- CWE-269 Improper Privilege Management weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2053455 Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2026-74/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-76/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-77/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-78/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-79/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-80/ Vendor Advisory