Is CVE-2022-29276 actively exploited?

No active exploitation of CVE-2022-29276 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-29276 be exploited remotely?

No. CVE-2022-29276 requires local access to exploit.

What is the CVSS score of CVE-2022-29276?

CVE-2022-29276 has a CVSS score of 8.2 (HIGH).

HOME VULNERABILITIESCVE-2022-29276

HIGH

CVE-2022-29276

CWE-787Published: November 15, 2022· Updated: Jun 17, 2026

8.2

CVSS v3.1

Official 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

NVD Source

Technical Analysis

CVE-2022-29276 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 8.2.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.