CVE-2025-10230
CVE-2025-10230 is a critical-severity vulnerability with a CVSS 3.x base score of 10.0. Its EPSS exploit-prediction score of 40% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.
Key facts
- Severity: Critical (CVSS 3.x base score 10.0)
- EPSS exploit prediction: 40% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-38301
- Weakness: CWE-78
- Published:
- Last modified:
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.
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.
- How severe is CVE-2025-10230?
- CVE-2025-10230 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-10230 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 40% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-10230?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2025-10230 have an EU (EUVD) identifier?
- Yes. CVE-2025-10230 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-38301.
- When was CVE-2025-10230 published?
- CVE-2025-10230 was published on 2025-11-07 and last updated on 2026-06-29.
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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