Improper access control vulnerability in McAfee ENS for Windows

published 2021-09-17 5y ago modified 2026-06-17 4mo ago also EUVD-2021-18718

cvss: 7.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

McAfee,LLC McAfee Endpoint Security (ENS) for WIndows 10.7.0 September 2021 Update

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Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	4.6	AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

McAfee,LLC McAfee Endpoint Security (ENS) for WIndows

Classification

Weakness

CWE-59 Improper Link Resolution Before File Access

References

kc.mcafee.com /corporate/index?page=content&id=SB10367

Sources

CVE List CVE-2021-31843
NVD CVE-2021-31843

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