CVE-2021-23880: Improper Access Control in the ENS installer

Severity: medium (CVSS 4.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-02-10 · updated 2026-06-17
Weakness: CWE-269

Description

Improper Access Control in attribute in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2021 Update allows authenticated local administrator user to perform an uninstallation of the anti-malware engine via the running of a specific command with the correct parameters.

Affected products

McAfee LLC McAfee Endpoint Security (ENS): before 10.7.0 — fixed in 10.7.0

How to fix

Upgrade to a fixed version: McAfee LLC McAfee Endpoint Security (ENS) 10.7.0. Check the vendor advisory for mitigations.

References

https://kc.mcafee.com/corporate/index?page=content&id=SB10345
https://kc.mcafee.com/corporate/index?page=content&id=SB10345

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