8.2

CVE-2022-36448: insyde insydeh2o Improper Input Validation

CVSS: 8.2v3.1HighModified
Published 28-09-2022Last modified 21-05-2025
Open JSON

Vulnerability summary

CVE-2022-36448 is a high (CVSS 8.2) Improper Input Validation vulnerability in insyde insydeh2o. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 25.4% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
43/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v3.1 (CVE.org)
EPSS score
0.34%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 28-09-2022
    PublishedVulnerability first disclosed.
  2. 21-05-2025
    Last modifiedVulnerability information updated.

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. There is an SMM memory corruption vulnerability in the Software SMI handler in the PnpSmm driver.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.34%

Chance of exploitation in the next 30 days

Percentile

25%

Versus all other CVEs

30-day change

+0.01 pp

From 0.32% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.34%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (binarly.io)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Insyde1 product
  • insydeh2o≥ 5.4, < 05.44.30 | ≥ 5.5, < 05.52.30

1 vendor · 1 product

References

3 links