CVE-2025-49709Critical· 9.8▾ MidnightCertain canvas operations could have lead to memory corruption. This vulnerability was fixed in Firefox 139.0.4.
▾ 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
Last analysed / modified upstream
0.7%
Certain canvas operations could have lead to memory corruption. This vulnerability was fixed in Firefox 139.0.4.
firefox < 139.0.4Upgrade past the affected range:
firefox 139.0.4Connected by shared product, vendor, weakness, or advisory.
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