CVE-2022-29275

Severity: high (CVSS 8.2 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: 2022-11-15 · updated 2026-06-17
Weakness: CWE-119

Description

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 through 5.0.05.09.21; from 5.1 before 5.1.05.17.21; from 5.2 before 5.2.05.27.21; from 5.3 before 5.3.05.36.21; from 5.4 before 5.4.05.44.21; from 5.5 before 5.5.05.52.21 — fixed in 5.1.05.17.21, 5.2.05.27.21, 5.3.05.36.21, 5.4.05.44.21, 5.5.05.52.21

How to fix

Upgrade to a fixed version: Insyde Kernel 5.1.05.17.21, 5.2.05.27.21, 5.3.05.36.21, 5.4.05.44.21. Check the vendor advisory for mitigations.

References

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