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Vulnerability record · CVE-2016-2124 · published 18 February 2022

CVE-2016-2124: Samba improper authentication vulnerability

Samba · Samba

A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent over the wire even if Kerberos authentication was required.

5.9 CVSS 3.1 Medium EPSS 1.8% · top 22.8% CWE-287 · Improper authentication
5.9CVSS 3.1 base score, v2 4.3
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
24Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent over the wire even if Kerberos authentication was required.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

24 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.redhat.com/show_bug.cgi?id=2019660 Issue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html
https://security.gentoo.org/glsa/202309-06
https://www.samba.org/samba/security/CVE-2016-2124.html MitigationVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2019660 Issue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html
https://security.gentoo.org/glsa/202309-06
https://www.samba.org/samba/security/CVE-2016-2124.html MitigationVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2016-2124), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.