CVE-2026-2777

CRITICAL

9.8

Description

Privilege escalation in the Messaging System component. This vulnerability was fixed in 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 modification4/13/2026

Sourcenvd

Observations honeypot0

Produits affectes

mozilla:firefoxmozilla:thunderbird

Faiblesses (CWE)

CWE-269

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2015305(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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