4.4

CVE-2022-40136: lenovo bios Out-of-bounds Read

CVSS: 4.4v3.1MediumModified
Published 30-01-2023Last modified 27-03-2025
Open JSON

Vulnerability summary

CVE-2022-40136 is a medium (CVSS 4.4) Out-of-bounds Read vulnerability in lenovo bios. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 8.7% of scored vulnerabilities.

Overall risk
18/100
0100
Low · default modelHow is this calculated?
CVSS score
4.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.20%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 30-01-2023
    PublishedVulnerability first disclosed.
  2. 27-03-2025
    Last modifiedVulnerability information updated.

Description

An information leak vulnerability in SMI Handler used to configure platform settings over WMI in some Lenovo models may allow an attacker with local access and elevated privileges to read SMM memory.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

0.00 pp

From 0.20% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.20%

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

Lenovo145 products

1 vendor · 145 products

References

1 links