10.0Critical
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.
What this means for your business
- An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 40% chance of attack attempts being seen in the next 30 days, ranking above 98% of all known flaws.
What to do
- 1Ask your IT team or provider whether any of your systems use the affected product.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Not sure if your company is exposed?
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Scoring
- CVSS
- 10.0 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H- Weakness
- CWE-78
- Assigned by
- secalert@redhat.com
Dates
- Published
- 2025-11-07
- Last modified
- 2026-08-31
- Sources
- NVD
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