Is CVE-2021-23876 actively exploited?

No active exploitation of CVE-2021-23876 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-23876 be exploited remotely?

No. CVE-2021-23876 requires local access to exploit.

What is the CVSS score of CVE-2021-23876?

CVE-2021-23876 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2021-23876

HIGH

CVE-2021-23876

CWE-269Published: February 10, 2021· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

Bypass Remote Procedure call in McAfee Total Protection (MTP) prior to 16.0.30 allows a local user to gain elevated privileges and perform arbitrary file modification as the SYSTEM user potentially causing Denial of Service via executing carefully constructed malware.

NVD Source

Technical Analysis

CVE-2021-23876 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.