Critical [CVE-2025-10230] Samba: command injection in wins server hook script
This critical-severity Red Hat Linux advisory covers CVE-2025-10230.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published
Summary
A flaw was found in Samba, in the front-end WINS hook handling: NetBIOS names from registration packets are passed to a shell without proper validation or escaping.
Unsanitized NetBIOS name data from WINS registration packets are inserted into a shell command and executed by the Samba Active Directory Domain Controller’s wins hook, allowing an unauthenticated network attacker to achieve remote command execution as the Samba process.
On Red Hat Enterprise Linux (RHEL) versions 6, 7, 8, 9 and 10, the Samba packages as shipped are not affected by this vulnerability.
This is because Red Hat does not provide Active Directory Domain Controller (AD DC) functionality in its Samba packages, and the vulnerable wins hook execution path exists only when Samba is configured as a domain controller with WINS support enabled. As a result, the Samba deployments on RHEL cannot be exploited via this issue.
This vulnerability is considered Critical rather than Important because it enables unauthenticated remote code execution (RCE) on a Samba Active Directory Domain Controller through a trivially reachable network service.
This means an attacker can inject arbitrary shell metacharacters and run commands with the privileges of the Samba process—often root on a DC.
Is CVE-2025-10230 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2025-10230 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2025-10230?
The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.
Confirm against the vendor advisory before you patch.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
Mitigation checklist
- No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
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