CVE-2026-74985
criticalPrivilege escalation in the Enterprise Policies component.
Vendor / product: Mozilla — firefox
Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
Timeline (UTC)
Published: 2026-08-18 13:17
Modified: 2026-11-03 23:17
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-11-03 23:24 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
mozilla / firefox <153.1.0
mozilla / thunderbird <153.1.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://www.mozilla.org/security/advisories/mfsa2026-74/
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/mfsa2026-80/
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2059825 security@mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-74/ security@mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-77/ security@mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-78/ security@mozilla.org
- https://www.mozilla.org/security/advisories/mfsa2026-80/ security@mozilla.org
Data sources
NVD CVE API 2.0 — fetched 2026-11-03 23:24 UTC · record ↗