CVE-2025-9182High· 7.5▾ TwilightDenial-of-service due to out-of-memory in the Graphics: WebRender component. This vulnerability was fixed in Firefox 142, Firefox ESR 140.2, Thunderbird 142, and Thunderbird 140.2.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.4%
Denial-of-service due to out-of-memory in the Graphics: WebRender component. This vulnerability was fixed in Firefox 142, Firefox ESR 140.2, Thunderbird 142, and Thunderbird 140.2.
firefox < 140.2.0firefox < 142.0thunderbird < 140.2.0thunderbird < 142.0Upgrade past the affected range:
firefox 142.0thunderbird 142.0Connected by shared product, vendor, weakness, or advisory.
CVE-2023-29544Medium· 6.5If multiple instances of resource exhaustion occurred at the incorrect time, the garbage collector could have caused memory corruption and a potentially exploitable crash
CVE-2026-8968High· 7.5Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component
CVE-2026-96869Medium· 4.3Information disclosure in the Networking component
CVE-2026-100832High· 8.8Use-after-free in the Graphics: Canvas2D component
CVE-2026-100831High· 8.8Use-after-free in the DOM: UI Events & Focus Handling component
CVE-2026-100830NoneMitigation bypass in the DOM: Navigation component