CVE-2026-8090High· 7.3▾ TwilightUse-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 40.2 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 28.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
firefox < 115.35.2firefox < 150.0.2firefox >= 128.0, < 140.10.2thunderbird < 140.10.2thunderbird < 150.0.2Upgrade past the affected range:
firefox 140.10.2thunderbird 150.0.2Connected by shared product, vendor, weakness, or advisory.
CVE-2026-8092High· 8.1Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1
CVE-2026-8094Critical· 9.8Other issue in the WebRTC component
CVE-2026-8975High· 8.8Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150
CVE-2026-8091Critical· 9.8Incorrect boundary conditions in the Audio/Video: Playback component
CVE-2026-8946High· 7.5Incorrect boundary conditions in the Audio/Video: Web Codecs component
CVE-2026-92005Medium· 5.3Use-after-free in the Audio/Video: Web Codecs component