CVE-2025-13023

Critical

Description

Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 145 and Thunderbird 145.

SeverityCritical
CVSS9.8
Exploit probability—
ProductMozilla Firefox
PublishedNov 11, 2025
First seenNov 11, 2025
Weakness typeCWE-703CWE-703

How to fix

Update
  • mozilla firefox145.0 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 145.0145.0

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Choose the product and enter the version you run to see whether it falls in the affected range.

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