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9.8 Critical

CVE-2025-49709 Certain canvas operations could have lead to memory corruption

Description

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

Affected products and versions

Product	Affected versions	Fixed in
Firefox 139.0	earliest → < 139.0.4	139.0.4

References

bugzilla.mozilla.org bugzilla.mozilla.org
www.mozilla.org www.mozilla.org

Timeline

Published June 11, 2025
Last modified July 27, 2026

The 2221 CVEs of Firefox →

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