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CVE-2026-4718

Firefox

Description

Undefined behavior in the WebRTC: Signaling component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

CVSS 8.1EPSS 0.299%Risk 0.83
View source
Published
2026-03-24 13:16:07
Affected versions
<149
Type
Core software
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N