CVE-2024-27353

Severity: high (CVSS 7.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-15 · updated 2026-06-17
Weakness: CWE-822

Description

A memory corruption vulnerability in SdHost and SdMmcDevice in Insyde InsydeH2O kernel 5.2 before 05.29.09, kernel 5.3 before 05.38.09, kernel 5.4 before 05.46.09, kernel 5.5 before 05.54.09, and kernel 5.6 before 05.61.09 could lead to escalating privileges in SMM.

Affected products

Insydeh2O: from 5.2 before 05.38.09; from 5.3 before 05.46.09; from 5.4 before 05.54.09; from 5.5 before 05.29.09; from 5.6 before 05.61.09 — fixed in 05.29.09, 05.38.09, 05.46.09, 05.54.09, 05.61.09

How to fix

Upgrade to a fixed version: Insydeh2O 05.29.09, 05.38.09, 05.46.09, 05.54.09. Check the vendor advisory for mitigations.

References

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