Is CVE-2026-75165 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-75165 being exploited in the wild.

How severe is CVE-2026-75165?

Medium severity, with a CVSS score of 6.5, published 4 September 2026.

Is there a fix for CVE-2026-75165?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-75165 attacked?

It is attacked over the network.

Am I affected by CVE-2026-75165?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-75165: MBS X-Serie Gateway hidden diagnostic methods disclosure

CVE-2026-75165 · Severity: medium · CVSS 6.5 · Published 2026-09-04

The MBS X-Serie Gateway is a universal network gateway used to translate between different building automation protocols in critical infrastructure environments. A vulnerability in its web interface allows low-privileged users to invoke hidden diagnostic commands (ping and traceroute) that should not be accessible, potentially exposing network topology and system information to attackers with basic authentication access.

Quick answers

Is CVE-2026-75165 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-75165 being exploited in the wild.
How severe is CVE-2026-75165?: Medium severity, with a CVSS score of 6.5, published 4 September 2026.
Which products and versions are affected?: MBS X-Serie Gateway V6_00_05.
Is there a fix for CVE-2026-75165?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-75165 attacked?: It is attacked over the network.
Am I affected by CVE-2026-75165?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exists in the /cgi-bin/wwwugw.cgi script of MBS X-Serie Gateway firmware V6_00_05. It permits authenticated users with the Standard role to invoke undocumented network diagnostic methods (ugw-ping, ugw-traceroute) that are hidden from the web UI. These methods are accessible without proper privilege escalation controls, allowing attackers with valid low-privilege credentials to execute network reconnaissance and information disclosure attacks. The issue affects authentication contexts where a Standard role user can make requests to this CGI endpoint without proper authorization checks for sensitive operations. Patches or updates should restrict access to these diagnostic methods or require higher privilege levels.

Affected products

MBS X-Serie Gateway V6_00_05

Timeline

2026-09-04: disclosed

References

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