NVD Vulnerability Detail
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CVE-2026-4718
Summary

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

Summary

Comportamiento indefinido en el componente de señalización de WebRTC. Esta vulnerabilidad afecta a Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, y Thunderbird < 140.9.

Publication Date March 24, 2026, 10:16 p.m.
Registration Date April 15, 2026, 11:21 a.m.
Last Update April 14, 2026, 12:17 a.m.
CVSS3.1 : HIGH
スコア 8.1
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR) 不要
利用者の関与(UI)
影響の想定範囲(S) 変更なし
機密性への影響(C)
完全性への影響(I)
可用性への影響(A) なし
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* 140.9.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 149.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:* 140.9.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:* 149.0
Related information, measures and tools
Common Vulnerabilities List