CVE-2022-24351: Insyde INSYDEH2O

Medium severity, CVSS 4.7. EPSS: 0.2% chance of exploitation in the next 30 days.

TOCTOU race-condition vulnerability in Insyde InsydeH2O with Kernel 5.2 before version 05.27.29, Kernel 5.3 before version 05.36.29, Kernel 5.4 version before 05.44.13, and Kernel 5.5 before version 05.52.13 allows an attacker to alter data and code used by the remainder of the boot process.

Affected products

• Insyde INSYDEH2O: from 5.2, before 5.2.05.27.29 (fixed in 5.2.05.27.29); from 5.3, before 5.3.05.36.29 (fixed in 5.3.05.36.29); from 5.4, before 5.4.05.44.13 (fixed in 5.4.05.44.13); from 5.5, before 5.5.05.52.13 (fixed in 5.5.05.52.13)

Published 2023-12-16. Last modified 2026-06-17.