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7.1 High

CVE-2025-4085 An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive…

Description

An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privileges. This vulnerability was fixed in Firefox 138 and Thunderbird 138.

Affected products and versions

Product Affected versions Fixed in
Firefox 138 earliest → < 138 138
Thunderbird 138 earliest → < 138 138

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-2026-118026 Invalid pointer in the JavaScript: GC component 8.8 High
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