by Kastro
Paper/Archive/CVE-2026-74985

CVE-2026-74985

Mozilla Firefox — Privilege escalation in the Enterprise Policies component

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
38
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 44.6.446 × 208.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

Affected

ProductAffectedFixed inSource
Firefoxsee advisory153.1CNA
Thunderbirdsee advisory153.1CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refbugzilla.mozilla.org/show_bug.cgi?id=2059825refmozilla.org/security/advisories/mfsa2026-74refmozilla.org/security/advisories/mfsa2026-77refmozilla.org/security/advisories/mfsa2026-78refmozilla.org/security/advisories/mfsa2026-80