CVE-2026-75166

high

Description

Insecure Permission vulnerability in MBS-Solutions X-Serie Gateway firmware V6_00_05 allows the low-privileged service user to execute /usr/bin/tcpdump as root without a password. By leveraging the tcpdump -z option, an authenticated attacker can achieve arbitrary command execution.

References

https://github.com/SilviaMun/vulnerability-research/tree/main/CVE-2026-75166

https://en.mbs-solutions.de/xserie

https://en.mbs-solutions.de/mbs

Details

Source: Mitre, NVD

Published: 2026-09-04

Updated: 2026-09-09

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00198