CVE-2026-92075
UnknownSummary
Mitigation bypass in the Networking component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
Risk Assessment
A mitigation bypass weakens application protections, which may facilitate exploitation of other vulnerabilities or enable an attack. Organizations running unpatched versions face increased compromise risk.
Recommendation
Update Firefox to version 156 or ESR 153.3 and Thunderbird to version 156. Monitor for unusual network activity from the application.
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-2026-92074Unknown
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-2026-92073High
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.
- 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)
Mitigation bypass in the Networking component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.