CVE-2025-10230

Description

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.

CVSS v3.1 Score

10.0

CRITICAL

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

Weakness Type (CWE)

CWE-78 OS Command Injection

References

Other References

https://access.redhat.com/security/cve/CVE-2025-10230 https://bugzilla.redhat.com/show_bug.cgi?id=2394377 https://www.samba.org/samba/history/security.html https://www.vicarius.io/vsociety/posts/cve-2025-10230-detect-samba-vulnerability https://www.vicarius.io/vsociety/posts/cve-2025-10230-mitigate-samba-vulnerability

Frequently Asked Questions

What is CVE-2025-10230? +

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. It has a CVSS v3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2025-10230? +

CVE-2025-10230 has a CVSS v3.1 score of 10.0 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

How do I check if I'm vulnerable to CVE-2025-10230? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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