9.8

CVE-2021-41842: insyde insydeh2o

CVSS: 9.8v3.1CriticalModified
Published 05-01-2022Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-41842 is a critical (CVSS 9.8) vulnerability in insyde insydeh2o. EPSS estimates a 1.53% chance of exploitation in the next 30 days, higher than 74.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.53%
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. 05-01-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in AtaLegacySmm in the kernel 5.0 before 05.08.46, 5.1 before 05.16.46, 5.2 before 05.26.46, 5.3 before 05.35.46, 5.4 before 05.43.46, and 5.5 before 05.51.45 in Insyde InsydeH2O. Code execution can occur because the SMI handler lacks a CommBuffer check.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.53%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

0.00 pp

From 1.53% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.53%

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

No weakness data has been published for this record.

Affected systems

Insyde1 product
  • insydeh2o≥ 5.0, < 05.08.46 | ≥ 5.1, < 05.16.46 | ≥ 5.2, < 05.26.46 | ≥ 5.3, < 05.35.46 | > 5.4, < 05.43.46 | ≥ 5.5, < 05.51.45

1 vendor · 1 product

References

2 links