Is CVE-2022-30773 actively exploited?

No active exploitation of CVE-2022-30773 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-30773 be exploited remotely?

No. CVE-2022-30773 requires local access to exploit.

What is the CVSS score of CVE-2022-30773?

CVE-2022-30773 has a CVSS score of 6.4 (MEDIUM).

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MEDIUM

CVE-2022-30773

CWE-367Published: November 14, 2022· Updated: Jun 17, 2026

6.4

CVSS v3.1

Official Description

DMA attacks on the parameter buffer used by the IhisiSmm 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 IhisiSmm 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. This issue is fixed in Kernel 5.4: 05.44.23 and Kernel 5.5: 05.52.23. CWE-367

NVD Source

Technical Analysis

CVE-2022-30773 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.