CVE-2025-41765 Details
Description
Due to insufficient authorization enforcement, an unauthorized remote attacker can exploit the wwwupload.cgi endpoint to upload and apply arbitrary data. This includes, but is not limited to, contact images, HTTPS certificates, system backups for restoration, server peer configurations, and BACnet/SC server certificates and keys.
A vulnerability exists in the MBS Universal BACnet Router UBR web interface, specifically within the wwwupload.cgi endpoint. Due to inadequate authorization checks, an unauthorized remote attacker can upload and overwrite arbitrary files, including contact images, HTTPS certificates, system backups, server peer configurations, and BACnet/SC server certificates and keys. This vulnerability affects both the 32 MB and 64 MB RAM versions of the UBR firmware.
Users are advised to update to the latest UBR firmware version 6.0.1.0, which addresses this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 9, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.mbs-solutions.de/mbs-2025-0001 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mbs-solutions universal bacnet router firmware | < 6.0.1.0 |
CPE
Remediation
| |
| mbs-solutions ubr-01 mk ii | All versions |
CPE
Remediation
| |
| mbs-solutions ubr-02 | All versions |
CPE
Remediation
| |
| mbs-solutions ubr-lon | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 11, 2026 | Initial Analysis | [email protected] |
| Mar 9, 2026 | New CVE Received | [email protected] |