Auth bypass in Lenovo A1

CVE-2021-42851

A vulnerability was reported in some Lenovo Personal Cloud Storage devices that could allow an unauthenticated user to create a standard user account.

Vulnerability class: Broken Access Control

EPSS: 0.006 (43.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-42851?
CVE-2021-42851 is a medium-severity vulnerability in Lenovo A1, classified under Missing Authorization. CVSS score: 6.3/10. Published 2022-05-18.
How severe is CVE-2021-42851?
Medium severity. CVSS v3 base score is 6.3 out of 10.