CVE-2025-9179Critical· 9.8▾ MidnightAn attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability was f…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 53.9 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 30.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.6%
Last analysed / modified upstream
0.6% → 0.6%
An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.
firefox < 115.27.0firefox < 142.0firefox >= 128.0, < 128.14.0firefox >= 140.0, < 140.2.0thunderbird < 128.14.0thunderbird < 142.0thunderbird >= 140.0, < 140.2.0Upgrade past the affected range:
firefox 140.2.0thunderbird 140.2.0Connected by shared product, vendor, weakness, or advisory.
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CVE-2026-118008High· 8.8Privilege escalation in the DOM: Navigation component
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