CVE-2025-49709

Memory corruption in canvas surfaces

CVSS 9.8 CRITICALEPSS 0.6%CWE-787

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.8EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

11 Jun 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Certain canvas operations could have lead to memory corruption. This vulnerability was fixed in Firefox 139.0.4.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

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References