CVE-2021-41842

moderate-risk

Published 2022-01-06

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.

Do I need to act?

1.2% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (1)

Insydeh2O

Affected Vendors

Insyde

References (4)

Third Party Advisory https://security.netapp.com/advisory/ntap-20220223-0002/

Vendor Advisory https://www.insyde.com/security-pledge

Third Party Advisory https://security.netapp.com/advisory/ntap-20220223-0002/

Vendor Advisory https://www.insyde.com/security-pledge

/ 100

moderate-risk

Severity 32/34 · Critical

Exploitability 4/34 · Minimal

Exposure 5/34 · Minimal