CVE-2022-30772

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

Manipulation of the input address in PnpSmm function 0x52 could be used by malware to overwrite SMRAM or OS kernel memory. Function 0x52 of the PnpSmm driver is passed the address and size of data to write into the SMBIOS table, but manipulation of the address could be used by malware to overwrite SMRAM or OS kernel memory. This issue was discovered by Insyde engineering during a security review. This issue is fixed in: Kernel 5.0: 05.09.41 Kernel 5.1: 05.17.43 Kernel 5.2: 05.27.30 Kernel 5.3: 05.36.30 Kernel 5.4: 05.44.30 Kernel 5.5: 05.52.30 https://www.insyde.com/security-pledge/SA-2022065

Affected products

Insyde Kernel: from 5.0 before 5.0.05.09.41; from 5.1 before 5.1.05.17.43; from 5.2 before 5.2.05.27.30; from 5.3 before 5.3.05.36.30; from 5.4 before 5.4.05.44.30; from 5.5 before 5.5.05.52.30 — fixed in 5.0.05.09.41, 5.1.05.17.43, 5.2.05.27.30, 5.3.05.36.30, 5.4.05.44.30, 5.5.05.52.30

How to fix

Upgrade to a fixed version: Insyde Kernel 5.0.05.09.41, 5.1.05.17.43, 5.2.05.27.30, 5.3.05.36.30. Check the vendor advisory for mitigations.

References

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