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9.8 Critical

CVE-2025-11709 A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using…

Description

A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.

Affected products and versions

Product Affected versions Fixed in
Firefox 144 earliest → < 144 144
Firefox 140.4 earliest → < 140.4 140.4
Firefox 115.29 earliest → < 115.29 115.29
Firefox ESR 140.4 earliest → < 140.4 140.4
Thunderbird 144 earliest → < 144 144
Thunderbird 140.4 earliest → < 140.4 140.4

Other CVEs of Firefox

The 2221 CVEs of Firefox →
CVE-2026-120572 Incorrect boundary conditions in the Layout: Block and Inline component 8.8 High CVE-2026-118027 Frame poisoning in the Layout component 9.1 Critical CVE-2026-118024 Use-after-free in the Graphics: Text component 8.8 High CVE-2026-118025 Other issue in the SVG component 8.8 High
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