CVE-2023-25733: Mozilla Firefox

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

The return value from `gfx::SourceSurfaceSkia::Map()` wasn't being verified which could have potentially lead to a null pointer dereference. This vulnerability affects Firefox < 110.

Affected products

• Mozilla Firefox: before 110.0 (fixed in 110.0)

Published 2023-06-19. Last modified 2026-06-17.