What is CVE-2021-3972?

CVE-2021-3972 is a medium-severity vulnerability in Lenovo Ideapad 3-14ada05, classified under Active Debug Code. CVSS score: 6.7/10. Published 2022-04-22.

How severe is CVE-2021-3972?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Is CVE-2021-3972 known to be exploited?

13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Lenovo Ideapad 3-14ada05

CVE-2021-3972

A potential vulnerability by a driver used during manufacturing process on some consumer Lenovo Notebook devices' BIOS that was mistakenly not deactivated may allow an attacker with elevated privileges to modify secure boot setting by modifying an NVRAM variable.

EPSS: 0.030 (86.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-489 — Active Debug Code

Public proof-of-concept exploits

References

psirt@lenovo.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-3972?: CVE-2021-3972 is a medium-severity vulnerability in Lenovo Ideapad 3-14ada05, classified under Active Debug Code. CVSS score: 6.7/10. Published 2022-04-22.
How severe is CVE-2021-3972?: Medium severity. CVSS v3 base score is 6.7 out of 10.
Is CVE-2021-3972 known to be exploited?: 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.