CVE-2025-41767: Signature bypass on update upload

Published Mar 9, 2026
·
Updated

A high-privileged remote attacker can fully compromise the device by abusing an update signature bypass vulnerability in the wwwupdate.cgi method in the web interface of UBR.

Affected Software

4 affected components
All of the following
Mbs-solutions Universal Bacnet Router Firmware<6.0.1.0
Any of the following
Mbs-solutions Ubr-01 Mk Ii
Mbs-solutions Ubr-02
Mbs-solutions Ubr-lon

Event History

Mar 9, 2026
CVE Published
via MITRE·08:18 AM
Data Sourced
via MITRE·08:18 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·09:16 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2025-41767?

CVE-2025-41767 is classified as a high-severity vulnerability due to its potential to allow a remote attacker to fully compromise the affected device.

2

How do I fix CVE-2025-41767?

To mitigate CVE-2025-41767, users should upgrade to the latest version of the Universal Bacnet Router Firmware that addresses the vulnerability.

3

Which devices are affected by CVE-2025-41767?

CVE-2025-41767 impacts devices running Universal Bacnet Router Firmware versions prior to 6.0.1.0.

4

What is the nature of the attack for CVE-2025-41767?

CVE-2025-41767 involves a signature bypass vulnerability that can be exploited via the wwwupdate.cgi method in the web interface.

5

Is there a workaround for CVE-2025-41767?

Currently, the recommended solution for CVE-2025-41767 is to update to the fixed firmware version, as no known workarounds are available.

Contact

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