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4.3 Medium

CVE-2024-5690 By monitoring the time certain operations take, an attacker could have guessed which external protocol handlers were…

Description

By monitoring the time certain operations take, an attacker could have guessed which external protocol handlers were functional on a user's system. This vulnerability affects Firefox < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.

Affected products and versions

Product Affected versions Fixed in
Firefox 127 earliest → < 127 127
Firefox ESR 115.12 earliest → < 115.12 115.12
Thunderbird 115.12 earliest → < 115.12 115.12

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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