CVE-2025-10528
7.3CVSSHIGH
Description
Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:LConfidentialityLow
I:LIntegrityLow
A:LAvailabilityLow
Weaknesses
Affected Products
and 8 more affected products View all →
Exploitability
Official Patch Available
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1986185
bugzilla.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2025-73/
mozilla.org
https://www.mozilla.org/security/advisories/mfsa2025-75/
mozilla.org
and 17 more references View all →
Timeline
Published
Sep 16, 2025
Last Updated
Apr 13, 2026
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