What is CVE-2025-41764?

CVE-2025-41764 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-2025-41764?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Mbs Ubr-01 Mk Ii

CVE-2025-41764

Due to insufficient authorization enforcement, an unauthorized remote attacker can exploit the wwwupdate.cgi endpoint to upload and apply arbitrary updates.

Vulnerability class: Broken Access Control

EPSS: 0.000 (15.2th 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

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

www.mbs-solutions.de/mbs-2025-0001

Frequently asked questions

What is CVE-2025-41764?: CVE-2025-41764 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-2025-41764?: Critical severity. CVSS v3 base score is 9.1 out of 10.