CVE-2022-29276

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-787

Description

SMI functions in AhciBusDxe use untrusted inputs leading to corruption of SMRAM. SMI functions in AhciBusDxe use untrusted inputs leading to corruption of SMRAM. This issue was discovered by Insyde during security review. It was fixed in: Kernel 5.0: version 05.09.18 Kernel 5.1: version 05.17.18 Kernel 5.2: version 05.27.18 Kernel 5.3: version 05.36.18 Kernel 5.4: version 05.44.18 Kernel 5.5: version 05.52.18 https://www.insyde.com/security-pledge/SA-2022059

Affected products

Insyde Kernel: from 5.0 before 5.0.05.09.18; from 5.1 before 5.1.05.17.18; from 5.2 before 5.2.05.27.18; from 5.3 before 5.3.05.36.18; from 5.4 before 5.4.05.44.18; from 5.5 before 5.5.05.52.18 — fixed in 5.0.05.09.18, 5.1.05.17.18, 5.2.05.27.18, 5.3.05.36.18, 5.4.05.44.18, 5.5.05.52.18

How to fix

Upgrade to a fixed version: Insyde Kernel 5.0.05.09.18, 5.1.05.17.18, 5.2.05.27.18, 5.3.05.36.18. Check the vendor advisory for mitigations.

References

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