CVE-2026-8970High· 8.8▾ TwilightPrivilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Jul 23.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
firefox < 140.11.0firefox < 151.0.0thunderbird < 140.11thunderbird < 151.0.0Upgrade past the affected range:
firefox 151.0.0thunderbird 151.0.0Connected by shared product, vendor, weakness, or advisory.
CVE-2026-8975High· 8.8Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150
CVE-2026-8974High· 8.8Memory safety bugs present in Firefox ESR 140.10 and Firefox 150
CVE-2026-8972High· 8.8Privilege escalation in the WebRTC: Audio/Video component
CVE-2026-8968High· 7.5Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component
CVE-2026-8962High· 8.1Mitigation bypass in the DOM: Security component
CVE-2026-8961Medium· 6.5Spoofing issue in the Form Autofill component