Vulnerability · Published Mar 9, 2026 · Assigned by CERTVDE

CVE-2025-41765Unchecked role in wwwupload.cgi

Critical 9.1

In plain English

A critical-severity missing authorization in UBR-01 Mk II from MBS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.3%top 79.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
MBS UBR-01 Mk II 0.0.0 – before 6.0.1.0
MBS UBR-02 0.0.0 – before 6.0.1.0
MBS UBR-LON 0.0.0 – before 6.0.1.0

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

References