What’s Vulnerable › Vulnerabilities

CVE-2025-10230: Samba: command injection in wins server hook script

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 39.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-07 · updated 2026-10-18
• Weakness: CWE-78

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.

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

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