CVEvulnerability
CVE-2026-84131
8.8 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-01
- Last modified
- 2026-09-03
- 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-763
Description
Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
Affected configurations
• mozilla firefox (< 115.40.0)
• mozilla firefox (>= 116.0 < 140.15.0)
• mozilla firefox (>= 141.0.0 < 153.2.0)
• mozilla firefox (>= 154.0.0 < 155.0.0)
• mozilla thunderbird (< 140.15.0)
• mozilla thunderbird (>= 141.0 < 153.2.0)
• mozilla thunderbird (>= 154.0 < 155.0)
Related
Weakness · CWE (1)
- CWE-763 Release of Invalid Pointer or Reference weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2060008 Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2026-82/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-83/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-84/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-85/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-86/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-87/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-88/ Vendor Advisory