7.2

CVE-2021-3970: lenovo ideapad_3-14ada05_firmware Improper Input Validation

CVSS: 7.2v2.0HighModified
Published 22-04-2022Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-3970 is a high (CVSS 7.2) Improper Input Validation vulnerability in lenovo ideapad_3-14ada05_firmware. EPSS estimates a 1.25% chance of exploitation in the next 30 days, higher than 69% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.2/10
010
High · v2.0 (NVD)
EPSS score
1.25%
0%100%
Low · -0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 22-04-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A potential vulnerability in LenovoVariable SMI Handler due to insufficient validation in some Lenovo Notebook models BIOS may allow an attacker with local access and elevated privileges to execute arbitrary code.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.25%

Chance of exploitation in the next 30 days

Percentile

69%

Versus all other CVEs

30-day change

-0.06 pp

From 1.31% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Lenovo106 products

1 vendor · 106 products

References

1 links