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Vulnerability record · CVE-2020-25717 · published 18 February 2022

CVE-2020-25717: Samba improper input validation vulnerability

Samba · Samba

A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.

8.1 CVSS 3.1 High EPSS 1.6% · top 24.8% CWE-20 · Improper input validation
8.1CVSS 3.1 base score, v2 8.5
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
25Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.

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

Affected products

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

References

LinkTags
https://bugzilla.redhat.com/show_bug.cgi?id=2019672 Issue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/202309-06
https://www.samba.org/samba/security/CVE-2020-25717.html MitigationVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2019672 Issue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/202309-06
https://www.samba.org/samba/security/CVE-2020-25717.html MitigationVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-25717), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.