#VU116115 Input validation error in net-tools - CVE-2025-46836
Published: September 25, 2025
Vulnerability identifier: #VU116115
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-46836
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
net-tools
net-tools
Software vendor:
Jakub Vrána
Jakub Vrána
Description
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to certain 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.
Remediation
Install updates from vendor's website.