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CRITICAL

CVE-2025-10230

CVSS v3

10

CRITICAL

EPSS Score

39.7 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2025-11-07

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.

Is CVE-2025-10230 actively exploited?

Active exploitation of CVE-2025-10230 has not been confirmed. Its EPSS score was 39.7% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-10230?

CVE-2025-10230 has a CVSS v3 base score of 10 (CRITICAL severity).

Is CVE-2025-10230 affecting your environment?

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