CVE-2021-20251
samba
MEDIUM 5.9
At a glance
- Source
- NVD
- EPSS
- EPSS 0.76 % · percentile 55 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
Description
A flaw was found in samba. A race condition in the password lockout code may lead to the risk of brute force attacks being successful if special conditions are met.
Weaknesses (CWE)
- CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-7689
- GCVE · GCVE-0-2021-20251
CERT-FR advisories
- CERTFR-2026-AVI-0249 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0969 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*≥ 4.1.0 < 4.16.8cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*≥ 4.17.0 < 4.17.4cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| samba | affected Samba 4.1 and newer |
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 |