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Fencer Vulns
medium 6.6

CVE-2025-46836 json

net-tools Stack-based Buffer Overflow vulnerability

published 2025-05-14 17 mo ago modified 2026-10-15 25 d ago also EUVD-2025-14945

cvss
6.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits
0
none known

Summary

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.

Patch / fix

  • Siemens RUGGEDCOM ROX MX5000 V2.17.1
  • Siemens RUGGEDCOM ROX MX5000RE V2.17.1
  • Siemens RUGGEDCOM ROX RX1400 V2.17.1
  • Siemens RUGGEDCOM ROX RX1500 V2.17.1
  • Siemens RUGGEDCOM ROX RX1501 V2.17.1
  • Siemens RUGGEDCOM ROX RX1510 V2.17.1
  • Siemens RUGGEDCOM ROX RX1511 V2.17.1
  • Siemens RUGGEDCOM ROX RX1512 V2.17.1
  • Siemens RUGGEDCOM ROX RX1524 V2.17.1
  • Siemens RUGGEDCOM ROX RX1536 V2.17.1
  • Siemens RUGGEDCOM ROX RX5000 V2.17.1
  • net-tools Debian 12 2.10-0.1+deb12u1
  • net-tools Debian 14, Debian 13 2.10-1.2

debian advisories DEBIAN-CVE-2025-46836

  • net-tools Ubuntu 20.04 LTS 1.60+git20180626.aebd88e-1ubuntu1.3
  • net-tools Ubuntu 22.04 LTS 1.60+git20181103.0eebece-1ubuntu5.4
  • net-tools Ubuntu 24.04 LTS 2.10-0.1ubuntu4.4
  • net-tools Ubuntu 25.10 2.10-1.3ubuntu1

ubuntu advisories UBUNTU-CVE-2025-46836

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • net-tools SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 2.10-160000.3.1
  • net-tools Linux Micro 6.0 2.10-4.1
  • net-tools SLE Module for Legacy 15 SP7, SLE Module for Legacy 15 SP6, SLE Module for Basesystem 15 SP7 +7 more 2.0+git20170221.479bb4a-150000.5.13.1
  • net-tools Linux Micro 6.1 2.10-slfo.1.1_2.1
  • net-tools Linux Micro 6.0 2.10-3.1
  • net-tools SLES LTSS Extended Security 12 SP5 1.60-765.15.1
  • net-tools SLES LTSS Extended Security 12 SP5 1.60-765.12.1

suse advisories SUSE-SU-2026:20940-1SUSE-SU-2026:20948-1SUSE-SU-2025:20825-1SUSE-SU-2025:03260-1SUSE-SU-2025:03245-1SUSE-SU-2025:20747-1

  • net-tools openSUSE Leap 16.0 2.10-160000.3.1
  • net-tools openSUSE Tumbleweed 2.10-4.1

opensuse advisories openSUSE-SU-2026:20437-1openSUSE-SU-2025:15428-1

  • net-tools CBL-Mariner 2.0, Azure Linux 3.0 2.10-4

azure linux advisories AZL-61883AZL-61888

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-46836 updated cvss 6.6

net-tools: net-tools Stack Buffer Overflow

  • Red Hat Enterprise Linux 6 net-tools Red Hat Enterprise Linux 7 net-tools Red Hat Enterprise Linux 8 net-tools Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-8, openshift/ose-rhel-coreos-9
    affected: workaround, no fix available “To mitigate this vulnerability, disable unprivileged user-namespaces (sysctl kernel.unprivileged_userns_clone=0) to remove the easiest non-privileged trigger path.”
  • Red Hat Enterprise Linux 9 net-tools Red Hat Enterprise Linux 10 net-tools
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-25-162-05 updated cvss 6.6

Siemens SIMATIC S7-1500 CPU family

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.5
    affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-26-134-16 updated cvss 6.6

Siemens Ruggedcom Rox

  • Siemens RUGGEDCOM ROX MX5000 < 2.17.1 Siemens RUGGEDCOM ROX MX5000RE < 2.17.1 Siemens RUGGEDCOM ROX RX1400 < 2.17.1 Siemens RUGGEDCOM ROX RX1500 < 2.17.1 Siemens RUGGEDCOM ROX RX1501 < 2.17.1 Siemens RUGGEDCOM ROX RX1510 < 2.17.1
    +5 more products
    Siemens RUGGEDCOM ROX RX1511 < 2.17.1 Siemens RUGGEDCOM ROX RX1512 < 2.17.1 Siemens RUGGEDCOM ROX RX1524 < 2.17.1 Siemens RUGGEDCOM ROX RX1536 < 2.17.1 Siemens RUGGEDCOM ROX RX5000 < 2.17.1
    affected: fixed in V2.17.1 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
17 mo ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

Affected products

  • ecki net-tools
  • Siemens RUGGEDCOM ROX MX5000
  • Siemens RUGGEDCOM ROX MX5000RE
  • Siemens RUGGEDCOM ROX RX1400
  • Siemens RUGGEDCOM ROX RX1500
  • Siemens RUGGEDCOM ROX RX1501
  • Siemens RUGGEDCOM ROX RX1510
  • Siemens RUGGEDCOM ROX RX1511
  • Siemens RUGGEDCOM ROX RX1512
  • Siemens RUGGEDCOM ROX RX1524
  • Siemens RUGGEDCOM ROX RX1536
  • Siemens RUGGEDCOM ROX RX5000
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-121 Stack-based Buffer Overflow

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.