CVE-2026-4718

HIGH

8.1

Description

Undefined behavior in the WebRTC: Signaling component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

Details CVE

Score CVSS v3.18.1

SeveriteHIGH

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurREQUIRED

Publie3/24/2026

Derniere modification3/25/2026

Sourcenvd

Observations honeypot0

Produits affectes

mozilla:firefoxmozilla:thunderbird

Faiblesses (CWE)

CWE-758

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2014864(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-20/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-22/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-23/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2026-24/(security@mozilla.org)

Correlations IOC

Aucune correlation enregistree

This product uses data from the NVD API but is not endorsed or certified by the NVD.