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10.0
CRITICAL • CVSS 3.1

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.

Prioritization

NVD CVSS
10.0
Published
Nov 7, 2025 3:15 PM EST
Modified
Aug 21, 2026 8:16 AM EDT
CISA KEV
No

Red Hat context

No Red Hat-specific cached context is available for this record.

DEFENSIVE REMEDIATION WORKFLOW

Recommended response

  1. Identify affected assets with Qualys, Tanium, software inventory, CMDB or configuration-management data.
  2. Confirm package/application applicability before change execution; CVSS alone does not prove that every host is vulnerable.
  3. Patch, upgrade, rehydrate or apply a vendor-approved mitigation through controlled change. GraceITS can automate eligible waves with Ansible/Tanium.
  4. Rescan after remediation and reconcile remaining exceptions, false positives, unsupported systems and compensating controls.
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