CVE-2022-24069: Insyde INSYDEH2O

High severity, CVSS 8.2. EPSS: 0.3% chance of exploitation in the next 30 days.

An issue was discovered in AhciBusDxe in Insyde InsydeH2O with kernel 5.0 before 05.08.41, 5.1 before 05.16.29, 5.2 before 05.26.29, 5.3 before 05.35.29, 5.4 before 05.43.29, and 5.5 before 05.51.29. An SMM callout vulnerability allows an attacker to hijack the execution flow of code running in System Management Mode. Exploiting this issue could lead to escalating privileges to SMM.

Affected products

• Insyde INSYDEH2O: from 5.1, before 5.16.29 (fixed in 5.16.29); from 5.2, before 5.26.29 (fixed in 5.26.29); from 5.3, before 5.35.29 (fixed in 5.35.29); from 5.0, before 5.08.29 (fixed in 5.08.29); from 5.4, before 5.43.29 (fixed in 5.43.29); from 5.5, before 5.51.29 (fixed in 5.51.29)

Published 2022-02-03. Last modified 2026-08-11.