Vulnerability DatabaseCVE-2020-25719
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CVE-2020-25719
Published:February 18, 2022
Updated:July 21, 2026
A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DC, could become confused about the user a ticket represents if it did not strictly require a Kerberos PAC and always use the SIDs found within. The result could include total domain compromise.
Related Resources (7)
https://www.samba.org/samba/security/CVE-2020-25719.html
https://access.redhat.com/security/cve/CVE-2020-25719
https://bugzilla.redhat.com/show_bug.cgi?id=2019732
https://security.gentoo.org/glsa/202309-06
https://security.alpinelinux.org/vuln/CVE-2020-25719
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-25719
https://security-tracker.debian.org/tracker/CVE-2020-25719
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CVSS v4
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-362
Improper Authentication
CWE-287
EPSS
Base Score:
1.67