Is CVE-2022-30774 actively exploited?

No active exploitation of CVE-2022-30774 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-30774 be exploited remotely?

No. CVE-2022-30774 requires local access to exploit.

What is the CVSS score of CVE-2022-30774?

CVE-2022-30774 has a CVSS score of 6.4 (MEDIUM).

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MEDIUM

CVE-2022-30774

CWE-367Published: November 15, 2022· Updated: Jun 17, 2026

6.4

CVSS v3.1

Official Description

DMA attacks on the parameter buffer used by the PnpSmm driver could change the contents after parameter values have been checked but before they are used (a TOCTOU attack) DMA attacks on the parameter buffer used by the PnpSmm driver could change the contents after parameter values have been checked but before they are used (a TOCTOU attack) . This issue was discovered by Insyde engineering during a security review. This iss was fixed in Kernel 5.2: 05.27.29, Kernel 5.3: 05.36.25, Kernel 5.4: 05.44.25, Kernel 5.5: 05.52.25. CWE-367 https://www.insyde.com/security-pledge/SA-2022043

NVD Source

Technical Analysis

CVE-2022-30774 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.4.