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6.5 Medium

CVE-2026-6764 Incorrect boundary conditions in the DOM: Device Interfaces component

Description

Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Affected products and versions

Product Affected versions Fixed in
Firefox 150 earliest → < 150 150
Firefox 140.10 earliest → < 140.10 140.10
Thunderbird 150 earliest → < 150 150
Thunderbird 140.10 earliest → < 140.10 140.10

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-2026-118026 Invalid pointer in the JavaScript: GC component 8.8 High CVE-2026-118025 Other issue in the SVG component 8.8 High
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