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.

An update of the samba package has been released.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-7d890563f6 advisory.

    Update to Samba 4.22.6 - Security fix for CVE-2025-9640 and CVE-2025-10230

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988619 advisory.

    Unity Link Advisory UTSA-2025-988619

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - If a Samba server has WINS support enabled (it is off by default), and it has a 'wins hook' parameter     specified, the program specified by that parameter will be run whenever a WINS name is changed. The WINS     server used by the Samba Active Directory Domain Controller did not validate the names passed to the wins     hook program, and it passed them by inserting them into a string run by a shell. WINS is an obsolete and     trusting protocol, and clients can request any name that fits within the 15 character NetBIOS limit. This     includes some shell metacharacters, making it possible to run arbitrary commands on the host. The WINS     server used by Samba when it is not a domain controller is unaffected. (CVE-2025-10230)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-5f46b27e1c advisory.

    Update to Samba 4.23.2 - Security fix for CVE-2025-9640 and CVE-2025-10230

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 41 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-c0830ff9f4 advisory.

    Security fix for CVE-2025-9640 and CVE-2025-10230

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03618-1 advisory.

    - CVE-2025-9640: Fixed uninitialized memory disclosure via vfs_streams_xattr (bsc#1251279).
    - CVE-2025-10230: Fixed command Injection in WINS server hook script (bsc#1251280).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:3677-1 advisory.

    - CVE-2025-9640: Fixed vfs_streams_xattr uninitialized memory write (bsc#1251279).
    - CVE-2025-10230: Fixed command Injection in WINS Server Hook Script (bsc#1251280).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:3676-1 advisory.

    - CVE-2025-9640: Fixed uninitialized memory disclosure via vfs_streams_xattr (bsc#1251279).
    - CVE-2025-10230: Fixed command Injection in WINS server hook script (bsc#1251280).

    Update to 4.21.8:

      * netr_LogonSamLogonEx returns NR_STATUS_ACCESS_DENIED with         SysvolReady=0; (bso#14981).
      * getpwuid does not shift to new DC when current DC is down;
        (bso#15844).
      * Windows security hardening locks out schannel'ed netlogon dc         calls like netr_DsRGetDCName; (bso#15876).
      * kinit command is failing with Missing cache Error;
        (bso#15840).
      * Figuring out the DC name from IP address fails and breaks         fork_domain_child(); (bso#15891).
      * Delayed leader broadcast can block ctdb forever; (bso#15892).
      * 'net ads group' failed to list domain groups; (bso#15900).
      * Apparently there is a conflict between shadow_copy2 module         and virusfilter (action quarantine); (bso#15663).
      * Fix handling of empty GPO link; (bso#15877).
      * SMB ACL inheritance doesn't work for files created;
        (bso#15880).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03604-1 advisory.

    - CVE-2025-9640: Fixed uninitialized memory disclosure via vfs_streams_xattr (bsc#1251279).
    - CVE-2025-10230: Fixed command Injection in WINS server hook script (bsc#1251280).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03603-1 advisory.

    - CVE-2025-9640: Fixed uninitialized memory disclosure via vfs_streams_xattr (bsc#1251279).
    - CVE-2025-10230: Fixed command Injection in WINS server hook script (bsc#1251280).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-3ddbddd7e2 advisory.

    Automatic update for samba-4.23.2-1.fc44.

    ##### **Changelog**

    ```
    * Fri Oct 17 2025 Gnther Deschner <gd@samba.org> - 2:4.23.2-1
    - Update to Samba 4.23.2
    - resolves: rhbz#2404204
    - resolves: rhbz#2391698 - Security fix for CVE-2025-9640
    - resolves: rhbz#2394377 - Security fix for CVE-2025-10230

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03612-1 advisory.

    - CVE-2025-9640: Fixed uninitialized memory disclosure via vfs_streams_xattr (bsc#1251279).
    - CVE-2025-10230: Fixed command Injection in WINS server hook script (bsc#1251280).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.04 / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7826-1 advisory.

    Andrew Walker discovered that Samba incorrectly initialized memory in the vfs_streams_xattr module. An     authenticated attacker could possibly use this issue to obtain sensitive information. (CVE-2025-9640)

    Igor Morgenstern discovered that Samba incorrectly handled names passed to the WINS hook program. An     attacker could possibly use this issue to execute arbitrary code. (CVE-2025-10230)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of samba installed on the remote host is prior to 4.22.5 / 4.23.2. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2025-288-01 advisory.

    New samba packages are available for Slackware 15.0 and -current to fix security issues.

Tenable has extracted the preceding description block directly from the samba security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
275494	Photon OS 5.0: Samba PHSA-2025-5.0-0648	Nessus	PhotonOS Local Security Checks	critical
275411	Photon OS 4.0: Samba PHSA-2025-4.0-0892	Nessus	PhotonOS Local Security Checks	critical
272182	Fedora 42 : samba (2025-7d890563f6)	Nessus	Fedora Local Security Checks	medium
272105	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: samba (UTSA-2025-988619)	Nessus	Unity Linux Local Security Checks	critical
271510	Linux Distros Unpatched Vulnerability : CVE-2025-10230	Nessus	Misc.	critical
271460	Fedora 43 : samba (2025-5f46b27e1c)	Nessus	Fedora Local Security Checks	medium
271223	Fedora 41 : samba (2025-c0830ff9f4)	Nessus	Fedora Local Security Checks	medium
270854	SUSE SLES15 Security Update : samba (SUSE-SU-2025:03618-1)	Nessus	SuSE Local Security Checks	medium
270853	SUSE SLES15 Security Update : samba (SUSE-SU-2025:3677-1)	Nessus	SuSE Local Security Checks	medium
270846	SUSE SLED15 / SLES15 Security Update : samba (SUSE-SU-2025:3676-1)	Nessus	SuSE Local Security Checks	medium
270836	SUSE SLES12 Security Update : samba (SUSE-SU-2025:03604-1)	Nessus	SuSE Local Security Checks	medium
270830	SUSE SLES15 Security Update : samba (SUSE-SU-2025:03603-1)	Nessus	SuSE Local Security Checks	medium
270821	Fedora 44 : samba (2025-3ddbddd7e2)	Nessus	Fedora Local Security Checks	medium
270693	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : samba (SUSE-SU-2025:03612-1)	Nessus	SuSE Local Security Checks	medium
270677	Ubuntu 22.04 LTS / 24.04 LTS / 25.04 / 25.10 : Samba vulnerabilities (USN-7826-1)	Nessus	Ubuntu Local Security Checks	medium
270623	Slackware Linux 15.0 / current samba Multiple Vulnerabilities (SSA:2025-288-01)	Nessus	Slackware Local Security Checks	medium

Detections

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CVE-2025-10230

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