What is CVE-2021-3451?

CVE-2021-3451 is a medium-severity vulnerability in Lenovo Pcmanager, classified under Incorrect Default Permissions. CVSS score: 5.5/10. Published 2021-04-27.

How severe is CVE-2021-3451?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Lenovo Pcmanager

CVE-2021-3451

A denial of service vulnerability was reported in Lenovo PCManager, prior to version 3.0.400.3252, that could allow configuration files to be written to non-standard locations.

Published 2021-04-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (8.4th percentile), scored 2026-09-30.

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

Affected products

Lenovo Pcmanager — versions unspecified

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

iknow.lenovo.com.cn/detail/dc_196156.html (Vendor Advisory)

Frequently asked questions

What is CVE-2021-3451?: CVE-2021-3451 is a medium-severity vulnerability in Lenovo Pcmanager, classified under Incorrect Default Permissions. CVSS score: 5.5/10. Published 2021-04-27.
How severe is CVE-2021-3451?: Medium severity. CVSS v3 base score is 5.5 out of 10.