Is CVE-2022-35407 actively exploited?

No active exploitation of CVE-2022-35407 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-35407 be exploited remotely?

No. CVE-2022-35407 requires local access to exploit.

What is the CVSS score of CVE-2022-35407?

CVE-2022-35407 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2022-35407

HIGH

CVE-2022-35407

CWE-787Published: November 22, 2022· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. A stack buffer overflow leads to arbitrary code execution in the SetupUtility driver on Intel platforms. An attacker can change the values of certain UEFI variables. If the size of the second variable exceeds the size of the first, then the buffer will be overwritten. This issue affects the SetupUtility driver of InsydeH2O.

NVD Source

Technical Analysis

CVE-2022-35407 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low 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 7.8.

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