SB2026061265 - Anolis OS update for samba

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Main Vulnerability Database SB2026061265

SB2026061265 - Anolis OS update for samba

Published: June 12, 2026

Security Bulletin ID SB2026061265
CSH Severity
High
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Improper Certificate Validation (CVE-ID: CVE-2026-3012)

CWE-ID: CWE-295 - Improper Certificate Validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to compromise certificate trust during auto-enrolment.

The vulnerability exists due to improper certificate validation in auto-enrolment GPO certificate installation when fetching a CA certificate over HTTP without verification. A remote attacker can tamper with the certificate retrieval process to compromise certificate trust during auto-enrolment.

The issue arises because HTTP was trusted for bootstrapping a certificate chain even when a more secure encrypted LDAP channel was available.


2) Command injection (CVE-ID: CVE-2026-4408)

CWE-ID: CWE-77 - Command injection

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to command injection in the Samba DCE/RPC SAMR server when invoking a check password script that uses the %u substitution character. A remote attacker can send crafted input that reaches the check password script to execute arbitrary code.

Exploitation requires samba-dcerpcd to be started as a system service on Samba file servers or classic non-AD domain controllers, and requires a configured "check password script" that uses the %u substitution character.


3) Command injection (CVE-ID: CVE-2026-4480)

CWE-ID: CWE-77 - Command injection

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to command injection in the Samba printing subsystem when invoking a print command that uses the %J substitution character. A remote attacker can submit crafted print job data that reaches the print command to execute arbitrary code.

Exploitation requires a Samba print server with a configured "print command" that uses the %J substitution character.


Remediation

Install update from vendor's website.

References