Veille CVE
CVE-2026-94184
5.3 MoyenneDescription
A stack-based buffer overflow flaw was found in fetchmail when built with NTLM support. A malicious or compromised mail server advertising NTLM authentication can send a crafted Type 2 challenge that causes fetchmail to write past a fixed stack buffer while building the NTLM authenticate response. This may lead to remote code execution depending on stack-frame layout, or to authentication failure or process termination under memory hardening.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 5.3 Moyenne | secalert@redhat.com | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| 3.1 | 8.1 Élevée | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Faiblesses (CWE)
Références
- https://access.redhat.com/errata/RHSA-2026:85959
- https://access.redhat.com/errata/RHSA-2026:86981
- https://access.redhat.com/errata/RHSA-2026:86982
- https://access.redhat.com/security/cve/CVE-2026-94184
- https://bugzilla.redhat.com/show_bug.cgi?id=2531984
- https://bugzilla.redhat.com/show_bug.cgi?id=2537395
- https://gitlab.com/fetchmail/fetchmail/-/commit/cb5be5c38471eec19e519ace0bc569176317ea92
- https://www.fetchmail.info/fetchmail-SA-2026-01.txt
- https://www.openwall.com/lists/oss-security/2026/06/27/8
- http://www.openwall.com/lists/oss-security/2026/09/23/1