Bypass of remote UNC path restriction in mailbox: URLs (Mozilla Thunderbird)
En bref
- Source
- NVD
- EPSS
- EPSS 0.22 % · centile 12 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- mozilla
- Statut NVD
- Received
Rechercher sur…
Description
Thunderbird's check that prevents mailbox: URLs from accessing files on remote Windows network shares could be bypassed using extended-length UNC paths. Displaying a specially crafted email could cause Thunderbird to connect to an SMB server chosen by the attacker, disclosing the user's Windows account name and NTLM authentication data, which could be used for offline password cracking or relay attacks. This bug only affects Thunderbird on Windows. Other operating systems are unaffected. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6.
Références
Références européennes
- ENISA EUVD · EUVD-2026-111353
- GCVE · GCVE-0-2026-118176
Avis du CERT-FR
- CERTFR-2026-AVI-1406 — Multiples vulnérabilités dans les produits Mozilla · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| Mozilla · Thunderbird | unaffected 153.6 ≤ 153.* ; unaffected 159 ≤ * |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |