NVD Vulnerability Detail
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CVE-2026-2767
Summary

Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Summary

Uso después de liberación en el componente JavaScript: WebAssembly. Esta vulnerabilidad afecta a Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, y Thunderbird < 140.8.

Publication Date Feb. 24, 2026, 11:16 p.m.
Registration Date April 15, 2026, 11:20 a.m.
Last Update April 14, 2026, 12:17 a.m.
CVSS3.1 : HIGH
スコア 8.8
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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)
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* 140.8.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* 148.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:* 140.8.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:* 148.0
Related information, measures and tools
Common Vulnerabilities List