Auth bypass in Mbs Ubr-01 Mk Ii
CVE-2025-41765
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 back…
Vulnerability class: Broken Access Control
EPSS: 0.003 (18.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
Affected products
- Mbs Ubr-01 Mk Ii — versions 0.0.0
- Mbs Ubr-02 — versions 0.0.0
- Mbs Ubr-lon — versions 0.0.0
- Mbs-solutions Ubr-01_mk_ii
- Mbs-solutions Ubr-02
- Mbs-solutions Ubr-lon
- Mbs-solutions Universal_bacnet_router_firmware
Weakness classification (CWE)
References
- info@cert.vde.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-41765?
- CVE-2025-41765 is a critical-severity vulnerability in Mbs Ubr-01 Mk Ii, classified under Missing Authorization. CVSS score: 9.1/10. Published 2026-03-09.
- How severe is CVE-2025-41765?
- Critical severity. CVSS v3 base score is 9.1 out of 10.