CVE-2022-29275: Insyde Kernel

High severity, CVSS 8.2. EPSS: 0.2% chance of exploitation in the next 30 days.

In UsbCoreDxe, untrusted input may allow SMRAM or OS memory tampering Use of untrusted pointers could allow OS or SMRAM memory tampering leading to escalation of privileges. This issue was discovered by Insyde during security review. It was fixed in: Kernel 5.0: version 05.09.21 Kernel 5.1: version 05.17.21 Kernel 5.2: version 05.27.21 Kernel 5.3: version 05.36.21 Kernel 5.4: version 05.44.21 Kernel 5.5: version 05.52.21 https://www.insyde.com/security-pledge/SA-2022058

Affected products

• Insyde Kernel: from 5.0, up to and including 5.0.05.09.21; from 5.1, before 5.1.05.17.21 (fixed in 5.1.05.17.21); from 5.2, before 5.2.05.27.21 (fixed in 5.2.05.27.21); from 5.3, before 5.3.05.36.21 (fixed in 5.3.05.36.21); from 5.4, before 5.4.05.44.21 (fixed in 5.4.05.44.21); from 5.5, before 5.5.05.52.21 (fixed in 5.5.05.52.21)

Published 2022-11-15. Last modified 2026-06-17.