CVE-2026-92073
HighCVSS 8.8Summary
A privilege escalation vulnerability in the Enterprise Policies component of Firefox and Thunderbird. It was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156. It could allow an attacker to gain higher privileges on the system.
Risk Assessment
Users of vulnerable versions are exposed to privilege escalation, which could lead to takeover of the browser or system. In a corporate environment, this may result in access to sensitive data.
Recommendation
Update Firefox, Firefox ESR, and Thunderbird to the patched versions (Firefox 156, Firefox ESR 153.3, Thunderbird 156). Enabling automatic updates is also recommended.
Other vulnerabilities in Firefox
See all- CVE-2026-92079Unknown
Mitigation bypass in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
- CVE-2026-92078Unknown
Denial-of-service in the Security component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
- CVE-2026-92077Unknown
Denial-of-service in the SVG component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
- CVE-2026-92076Unknown
Incorrect boundary conditions in the Networking component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
- CVE-2026-92075Unknown
Mitigation bypass in the Networking component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
- CVE-2026-92074Unknown
Mitigation bypass in the Popup Blocker component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
- CVE-2026-92072Unknown
Incorrect boundary conditions in the Safe Browsing component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
- CVE-2026-92071Unknown
Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
- CVE-2026-92070Unknown
Information disclosure in the Networking component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
- CVE-2026-92069Unknown
Spoofing issue in the DOM: Navigation component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
Original NVD description (English source)
Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.