CVE-2026-113869

5.4 Moyenne

Publiée le 20/10/2026 à 22:17 · Modifiée le 20/10/2026 à 22:17 · Reçue · Source : security@mozilla.org

Description

When Thunderbird asked for a security device password (for example a smartcard PIN or the Primary Password) while decrypting an S/MIME message, the message load could finish or be cancelled while the prompt was open. This freed the message decoder while it was still in use, causing a use-after-free and a potentially exploitable crash. This vulnerability was fixed in Thunderbird 158.0.1.

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Produits concernés

Mozilla Thunderbird

Scores CVSS

Version	Score	Source	Vecteur
3.1	5.4 Moyenne	134c704f-9b21-4f2e-91b3-4a467353bcc0	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L`

Faiblesses (CWE)

CWE-416

Références

https://bugzilla.mozilla.org/show_bug.cgi?id=2075530
https://www.mozilla.org/security/advisories/mfsa2026-114/

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories