Buffer overflow in Mbs Ubr-01 Mk Ii

CVE-2025-41766

A low-privileged remote attacker can trigger a stack-based buffer overflow via a crafted HTTP POST request using the ubr-network method resulting in full device compromise.

Vulnerability class: Buffer Overflow

EPSS: 0.000 (10.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-41766?
CVE-2025-41766 is a high-severity vulnerability in Mbs Ubr-01 Mk Ii, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2026-03-09.
How severe is CVE-2025-41766?
High severity. CVSS v3 base score is 8.8 out of 10.