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7.5 High

CVE-2026-4713 Incorrect boundary conditions in the Graphics component

Description

Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

Affected products and versions

Product Affected versions Fixed in
Firefox 149 earliest → < 149 149
Firefox 140.9 earliest → < 140.9 140.9
Thunderbird 149 earliest → < 149 149
Thunderbird 140.9 earliest → < 140.9 140.9

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-2026-118025 Other issue in the SVG component 8.8 High CVE-2026-118024 Use-after-free in the Graphics: Text component 8.8 High
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