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6.5 Medium

CVE-2025-3031 An attacker could read 32 bits of values spilled onto the stack in a JIT compiled function

Description

An attacker could read 32 bits of values spilled onto the stack in a JIT compiled function. This vulnerability was fixed in Firefox 137 and Thunderbird 137.

Affected products and versions

Product Affected versions Fixed in
Firefox 137 earliest → < 137 137
Thunderbird 137 earliest → < 137 137

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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