In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent forwarding.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2025-1038 advisory.

    In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation     stating that it disables X11 and agent forwarding. (CVE-2025-32728)

Tenable has extracted the preceding description block directly from the tested product 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 version of openssh installed on the remote host is prior to 7.4p1-22. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2025-2881 advisory.

    In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation     stating that it disables X11 and agent forwarding. (CVE-2025-32728)

Tenable has extracted the preceding description block directly from the tested product 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 remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-ad76584c00 advisory.

    Fixes CVE-2025-32728

Tenable has extracted the preceding description block directly from the Fedora 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 remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2025:01638-2 advisory.

    This update for openssh fixes the following issue:

    Security fixes:

    - CVE-2025-32728: Fixed logic error in DisableForwarding option (bsc#1241012)

    Other fixes:
    - Fix ssh client segfault with GSSAPIKeyExchange=yes in ssh_kex2       due to gssapi proposal not being correctly initialized (bsc#1236826).
      The problem was introduced in the rebase of the patch for 9.6p1
    - Enable --with-logind to call the SetTTY dbus method in systemd.
      This allows 'wall' to print messages in ssh ttys (bsc#1239671)

Tenable has extracted the preceding description block directly from the SUSE 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 remote Fedora 41 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-8896dcbcd0 advisory.

    Fixes CVE-2025-32728

Tenable has extracted the preceding description block directly from the Fedora 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 remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2025:1576-1 advisory.

    - Security issues fixed:

      * CVE-2025-32728: Fixed a logic error in DisableForwarding option (bsc#1241012)

    - Other bugs fixed:

      * Allow KEX hashes greater than 256 bits (bsc#1241045)
      * Fixed hostname being left out of the audit output (bsc#1228634)
      * Fixed failures with very large MOTDs (bsc#1232533)

Tenable has extracted the preceding description block directly from the SUSE 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 remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2025:01638-1 advisory.

    This update for openssh fixes the following issue:

    Security fixes:

    - CVE-2025-32728: Fixed logic error in DisableForwarding option (bsc#1241012)

    Other fixes:
    - Fix ssh client segfault with GSSAPIKeyExchange=yes in ssh_kex2       due to gssapi proposal not being correctly initialized (bsc#1236826).
      The problem was introduced in the rebase of the patch for 9.6p1
    - Enable --with-logind to call the SetTTY dbus method in systemd.
      This allows 'wall' to print messages in ssh ttys (bsc#1239671)

Tenable has extracted the preceding description block directly from the SUSE 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 remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4156 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4156-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                         Colin Watson     May 08, 2025                                  https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : openssh     Version        : 1:8.4p1-5+deb11u5     CVE ID         : CVE-2025-32728     Debian Bug     : 1102603

    Tim Rice discovered that the DisableForwarding directive was documented     as disabling X11 and agent forwarding but it failed to do so.


    For Debian 11 bullseye, this problem has been fixed in version     1:8.4p1-5+deb11u5.

    We recommend that you upgrade your openssh packages.

    For the detailed security status of openssh please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/openssh

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

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

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

An update of the openssh package has been released.

The version of openssh installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-32728 advisory.

  - In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation     stating that it disables X11 and agent forwarding. (CVE-2025-32728)

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

The version of openssh installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-32728 advisory.

  - In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation     stating that it disables X11 and agent forwarding. (CVE-2025-32728)

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

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 / 25.04 host has packages installed that are affected by a vulnerability as referenced in the USN-7457-1 advisory.

    It was discovered that OpenSSH incorrectly handled the DisableForwarding directive. The directive would     fail to disable X11 and agent forwarding, contrary to documentation and expectations.

Tenable has extracted the preceding description block directly from the Ubuntu 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 version of OpenSSH installed on the remote host is prior to 10.0. It is, therefore, affected by a vulnerability. In sshd in OpenSSH the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent forwarding.

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

ID	Name	Product	Family	Severity
240306	Amazon Linux 2023 : openssh, openssh-clients, openssh-keycat (ALAS2023-2025-1038)	Nessus	Amazon Linux Local Security Checks	low
238353	Amazon Linux 2 : openssh (ALAS-2025-2881)	Nessus	Amazon Linux Local Security Checks	low
237950	Fedora 42 : openssh (2025-ad76584c00)	Nessus	Fedora Local Security Checks	low
237928	SUSE SLED15 / SLES15 Security Update : openssh (SUSE-SU-2025:01638-2)	Nessus	SuSE Local Security Checks	low
237172	Fedora 41 : openssh (2025-8896dcbcd0)	Nessus	Fedora Local Security Checks	low
237081	SUSE SLES15 Security Update : openssh (SUSE-SU-2025:1576-1)	Nessus	SuSE Local Security Checks	medium
237072	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : openssh (SUSE-SU-2025:01638-1)	Nessus	SuSE Local Security Checks	medium
235598	Debian dla-4156 : openssh-client - security update	Nessus	Debian Local Security Checks	medium
235173	Photon OS 3.0: Openssh PHSA-2025-3.0-0824	Nessus	PhotonOS Local Security Checks	medium
235150	Photon OS 4.0: Openssh PHSA-2025-4.0-0790	Nessus	PhotonOS Local Security Checks	medium
235144	Photon OS 5.0: Openssh PHSA-2025-5.0-0515	Nessus	PhotonOS Local Security Checks	medium
234875	CBL Mariner 2.0 Security Update: openssh (CVE-2025-32728)	Nessus	MarinerOS Local Security Checks	medium
234868	Azure Linux 3.0 Security Update: openssh (CVE-2025-32728)	Nessus	Azure Linux Local Security Checks	medium
234810	Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 / 25.04 : OpenSSH vulnerability (USN-7457-1)	Nessus	Ubuntu Local Security Checks	medium
234554	OpenSSH < 10.0 DisableForwarding	Nessus	Misc.	low

Detections

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CVE-2025-32728

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