CVE-2021-23882

Name: CVE-2021-23882
Creator: NVD / NIST
Published: 2021-02-10T10:15:13.363+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.4/10EPSS 0.29%

Last modified Jun 17, 2026

CVE-2021-23882 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. Improper Access Control vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2021 Update allows local administrators to prevent the installation of some ENS files by placing carefully crafted files where ENS will be installed. This is only applicable to clean installations of ENS as the Access Control rules will prevent modification prior to up an upgrade.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

Description

Improper Access Control vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2021 Update allows local administrators to prevent the installation of some ENS files by placing carefully crafted files where ENS will be installed. This is only applicable to clean installations of ENS as the Access Control rules will prevent modification prior to up an upgrade.

Metrics

CVSS 3.1

4.4/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

0.29%

20.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions
Mcafee	Endpoint Security	< 10.7.0

References

https://kc.mcafee.com/corporate/index?page=content&id=SB10345Broken Link, Vendor Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10345Broken Link, Vendor Advisory

Timeline

Published: Feb 10, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-23882?

How severe is CVE-2021-23882?

CVE-2021-23882 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23882?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-23882?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST