CVE-2025-4918

CRITICAL

9.8

Description

An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This vulnerability was fixed in Firefox 138.0.4, Firefox ESR 128.10.1, Firefox ESR 115.23.1, Thunderbird 128.10.2, and Thunderbird 138.0.2.

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

Publie5/17/2025

Derniere modification4/13/2026

Sourcenvd

Observations honeypot0

Produits affectes

mozilla:firefoxmozilla:thunderbird

Faiblesses (CWE)

CWE-125CWE-787

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1966612(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2025-36/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2025-37/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2025-38/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2025-40/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2025-41/(security@mozilla.org)

https://lists.debian.org/debian-lts-announce/2025/05/msg00024.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2025/05/msg00046.html(af854a3a-2127-422b-91ae-364da2661108)

https://www.vicarius.io/vsociety/posts/cve-2025-4918-detect-firefox-out-of-bounds-write(af854a3a-2127-422b-91ae-364da2661108)

https://www.vicarius.io/vsociety/posts/cve-2025-4918-mitigate-firefox-out-of-bounds-write(af854a3a-2127-422b-91ae-364da2661108)

Correlations IOC

Aucune correlation enregistree

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