net-tools is a collection of programs that form the base set of the NET-3 networking distribution for the Linux operating system. Inn versions up to and including 2.10, the Linux network utilities (like ifconfig) from the net-tools package do not properly validate the structure of /proc files when showing interfaces. `get_name()` in `interface.c` copies interface labels from `/proc/net/dev` into a fixed 16-byte stack buffer without bounds checking, leading to possible arbitrary code execution or crash. The known attack path does not require privilege but also does not provide privilege escalation in this scenario. A patch is available and expected to be part of version 2.20.

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The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 / 25.04 host has a package installed that is affected by a vulnerability as referenced in the USN-7537-1 advisory.

    It was discovered that net-tools incorrectly handled certain inputs. An attacker could possible use this     issue to cause a crash or execute arbitrary code.

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 remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dla-4202 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4202-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                          Adrian Bunk     May 31, 2025                                  https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : net-tools     Version        : 1.60+git20181103.0eebece-1+deb11u2     CVE ID         : CVE-2025-46836     Debian Bug     : 1105806

    Multiple stack-based buffer overflows have been fixed in the net-tools     network utilities.

    For Debian 11 bullseye, this problem has been fixed in version     1.60+git20181103.0eebece-1+deb11u2.

    We recommend that you upgrade your net-tools packages.

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

    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

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.

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2025:0379 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2025-46836:
    net-tools is a collection of programs that form the base set of the NET-3 networking distribution for the     Linux operating system. Inn versions up to and including 2.10, the Linux network utilities (like ifconfig)     from the net-tools package do not properly validate the structure of /proc files when showing interfaces.
    `get_name()` in `interface.c` copies interface labels from `/proc/net/dev` into a fixed 16-byte stack     buffer without bounds checking, leading to possible arbitrary code execution or crash. The known attack     path does not require privilege but also does not provide privilege escalation in this scenario. A patch     is available and expected to be part of version 2.20.

Tenable has extracted the preceding description block directly from the Tencent 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 remote SUSE Linux SLES12 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2025:02974-1 advisory.

    - CVE-2025-46836: Fixed absence of bound check that might lead to a stack buffer overflow (bsc#1243581)

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 version of net-tools 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-2025-46836 advisory.

  - net-tools is a collection of programs that form the base set of the NET-3 networking distribution for the     Linux operating system. Inn versions up to and including 2.10, the Linux network utilities (like ifconfig)     from the net-tools package do not properly validate the structure of /proc files when showing interfaces.
    `get_name()` in `interface.c` copies interface labels from `/proc/net/dev` into a fixed 16-byte stack     buffer without bounds checking, leading to possible arbitrary code execution or crash. The known attack     path does not require privilege but also does not provide privilege escalation in this scenario. A patch     is available and expected to be part of version 2.20. (CVE-2025-46836)

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.

  - net-tools is a collection of programs that form the base set of the NET-3 networking distribution for the     Linux operating system. Inn versions up to and including 2.10, the Linux network utilities (like ifconfig)     from the net-tools package do not properly validate the structure of /proc files when showing interfaces.
    `get_name()` in `interface.c` copies interface labels from `/proc/net/dev` into a fixed 16-byte stack     buffer without bounds checking, leading to possible arbitrary code execution or crash. The known attack     path does not require privilege but also does not provide privilege escalation in this scenario. A patch     is available and expected to be part of version 2.20. (CVE-2025-46836)

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

The remote SUSE Linux SLES12 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2025:03245-1 advisory.

    Security issues fixed:

    - Avoid unsafe use of `memcpy` in `ifconfig` (bsc#1248687).
    - Prevent overflow in `ax25` and `netrom` (bsc#1248687).
    - Fix stack buffer overflow in `parse_hex` (bsc#1248687).
    - Fix stack buffer overflow in `proc_gen_fmt` (bsc#1248687).

    Other issues fixed:

    - Allow use of long interface names after CVE-2025-46836 fix, even if they are not accepted by the kernel     (bsc#1248410).

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-2025:03260-1 advisory.

    Security issues fixed:

    - CVE-2025-46836: missing bounds check in `get_name` may lead to a stack buffer overflow (bsc#1243581).
    - Avoid unsafe use of `memcpy` in `ifconfig` (bsc#1248687).
    - Prevent overflow in `ax25` and `netrom` (bsc#1248687).
    - Fix stack buffer overflow in `parse_hex` (bsc#1248687).
    - Fix stack buffer overflow in `proc_gen_fmt` (bsc#1248687).

    Other issues fixed:

    - Allow use of long interface names after CVE-2025-46836 fix, even if they are not accepted by the kernel     (bsc#1248410).
    - Fix netrom support.

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 version of net-tools 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-2025-46836 advisory.

  - net-tools is a collection of programs that form the base set of the NET-3 networking distribution for the     Linux operating system. Inn versions up to and including 2.10, the Linux network utilities (like ifconfig)     from the net-tools package do not properly validate the structure of /proc files when showing interfaces.
    `get_name()` in `interface.c` copies interface labels from `/proc/net/dev` into a fixed 16-byte stack     buffer without bounds checking, leading to possible arbitrary code execution or crash. The known attack     path does not require privilege but also does not provide privilege escalation in this scenario. A patch     is available and expected to be part of version 2.20. (CVE-2025-46836)

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	Published	Updated	Severity
503955	Siemens SIMATIC S7-1500 Improper Input Validation (CVE-2025-46836)	Tenable OT Security	Tenable.ot	11/13/2025	2/14/2026	medium
237384	Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 / 25.04 : net-tools vulnerability (USN-7537-1)	Nessus	Ubuntu Local Security Checks	5/27/2025	5/27/2025	medium
237623	Debian dla-4202 : net-tools - security update	Nessus	Debian Local Security Checks	5/31/2025	5/31/2025	medium
275925	TencentOS Server 4: net-tools (TSSA-2025:0379)	Nessus	Tencent Local Security Checks	11/20/2025	11/20/2025	medium
255202	SUSE SLES12 Security Update : net-tools (SUSE-SU-2025:02974-1)	Nessus	SuSE Local Security Checks	8/26/2025	8/26/2025	medium
241892	CBL Mariner 2.0 Security Update: net-tools (CVE-2025-46836)	Nessus	MarinerOS Local Security Checks	7/11/2025	7/11/2025	medium
246878	Linux Distros Unpatched Vulnerability : CVE-2025-46836	Nessus	Misc.	8/9/2025	1/30/2026	medium
265404	SUSE SLES12 Security Update : net-tools (SUSE-SU-2025:03245-1)	Nessus	SuSE Local Security Checks	9/18/2025	9/18/2025	medium
265419	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : net-tools (SUSE-SU-2025:03260-1)	Nessus	SuSE Local Security Checks	9/19/2025	9/19/2025	medium
241873	Azure Linux 3.0 Security Update: net-tools (CVE-2025-46836)	Nessus	Azure Linux Local Security Checks	7/11/2025	9/15/2025	medium

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