Is CVE-2021-31843 actively exploited?

No active exploitation of CVE-2021-31843 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-31843 be exploited remotely?

No. CVE-2021-31843 requires local access to exploit.

What is the CVSS score of CVE-2021-31843?

CVE-2021-31843 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2021-31843

HIGH

CVE-2021-31843

CWE-59Published: September 17, 2021· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

Improper privileges management vulnerability in McAfee Endpoint Security (ENS) Windows prior to 10.7.0 September 2021 Update allows local users to access files which they would otherwise not have access to via manipulating junction links to redirect McAfee folder operations to an unintended location.

NVD Source

Technical Analysis

CVE-2021-31843 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.