Is CVE-2021-31841 actively exploited?

No active exploitation of CVE-2021-31841 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-31841 be exploited remotely?

No. CVE-2021-31841 requires local access to exploit.

What is the CVSS score of CVE-2021-31841?

CVE-2021-31841 has a CVSS score of 7.3 (HIGH).

HOME VULNERABILITIESCVE-2021-31841

HIGH

CVE-2021-31841

CWE-347Published: September 22, 2021· Updated: Jun 17, 2026

7.3

CVSS v3.1

Official Description

A DLL sideloading vulnerability in McAfee Agent for Windows prior to 5.7.4 could allow a local user to perform a DLL sideloading attack with an unsigned DLL with a specific name and in a specific location. This would result in the user gaining elevated permissions and the ability to execute arbitrary code as the system user, through not checking the DLL signature.

NVD Source

Technical Analysis

CVE-2021-31841 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 7.3.