CVE-2026-2758

CRITICAL

9.8

Description

Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.

Details CVE

Score CVSS v3.19.8

SeveriteCRITICAL

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie2/24/2026

Derniere modification2/26/2026

Sourcenvd

Observations honeypot0

Produits affectes

mozilla:firefoxmozilla:thunderbird

Faiblesses (CWE)

CWE-416CWE-416

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2009608(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-13/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-14/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-15/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-16/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-17/(security@mozilla.org)

Correlations IOC

Aucune correlation enregistree

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