CVE-2026-75166
Received Received - Intake

Insecure Permission in MBS-Solutions X-Serie Gateway Firmware

Publication date: 2026-09-04

Last updated on: 2026-09-04

Assigner: MITRE

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-04
Last Modified
2026-09-04
Generated
2026-09-04
AI Q&A
2026-09-04
EPSS Evaluated
N/A
NVD
CVE-2026-75166
EUVD
EUVD-2026-71447

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mbs-solutions x-serie_gateway 6_00_05

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is an insecure permission issue in MBS-Solutions X-Serie Gateway firmware version V6_00_05. It allows a low-privileged service user to run the tcpdump tool as root without requiring a password. By using the tcpdump -z option, an authenticated attacker can execute arbitrary commands on the system.

Impact Analysis

An attacker with low-level access could escalate privileges to root, execute malicious commands, and potentially take full control of the affected device. This could lead to data theft, system compromise, or disruption of services.

Mitigation Strategies

Immediately update the MBS-Solutions X-Serie Gateway firmware to the latest version to remove the insecure permission configuration. Restrict access to the service user account and audit all accounts with elevated privileges.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-75166. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart