CVE-2026-8953Critical· 9.6▾ MidnightSandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 52.8 · likelihood 0.1 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.5%
Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
firefox < 115.36.0firefox < 151.0.0firefox >= 140.0, < 140.11.0thunderbird < 140.11Upgrade past the affected range:
firefox 140.11.0thunderbird 140.11Connected by shared product, vendor, weakness, or advisory.
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