CVE-2025-41757: Arbitrary Write with ubr-restore

Published Mar 9, 2026
·
Updated

A low-privileged remote attacker can abuse the backup restore functionality of UBR (ubr-restore) which runs with elevated privileges and does not validate the contents of the backup archive to create or overwrite arbitrary files anywhere on the system.

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·08:16 AM
Data Sourced
via MITRE·08:16 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·09:15 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2025-41757?

CVE-2025-41757 has a high severity rating due to its potential for arbitrary file write exploits.

2

How do I fix CVE-2025-41757?

To fix CVE-2025-41757, upgrade to a patched version of the Universal Bacnet Router firmware beyond 6.0.1.0.

3

Who is affected by CVE-2025-41757?

CVE-2025-41757 affects users of Mbs-solutions Universal Bacnet Router firmware versions up to 6.0.1.0.

4

What type of vulnerability is CVE-2025-41757?

CVE-2025-41757 is classified as an arbitrary write vulnerability due to improper validation of backup archives.

5

Can CVE-2025-41757 be exploited remotely?

Yes, CVE-2025-41757 can be exploited remotely by low-privileged attackers through the backup restore functionality.

Contact

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