Auth bypass in Unitree B2

CVE-2025-60251

Unitree Go2, G1, H1, and B2 devices through 2025-09-20 accept any handshake secret with the unitree substring.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.002 (8.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-60251: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-60251?
CVE-2025-60251 is a medium-severity vulnerability in Unitree B2, classified under Missing Authentication for Critical Function. CVSS score: 5.0/10. Published 2025-09-26.
How severe is CVE-2025-60251?
Medium severity. CVSS v3 base score is 5.0 out of 10.
Is CVE-2025-60251 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.