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Vulnerability record · CVE-2021-23885 · published 17 February 2021

CVE-2021-23885: Mcafee web gateway improper privilege management vulnerability

MMcafee · Web Gateway

Privilege escalation vulnerability in McAfee Web Gateway (MWG) prior to 9.2.8 allows an authenticated user to gain elevated privileges through the User Interface and execute commands on the appliance via incorrect improper neutralization of user input in the troubleshooting page.

8.8 CVSS 3.1 High EPSS 1.1% · top 35.9% CWE-269 · Improper privilege management
8.8CVSS 3.1 base score, v2 9.0
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Privilege escalation vulnerability in McAfee Web Gateway (MWG) prior to 9.2.8 allows an authenticated user to gain elevated privileges through the User Interface and execute commands on the appliance via incorrect improper neutralization of user input in the troubleshooting page.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://kc.mcafee.com/corporate/index?page=content&id=SB10349
https://kc.mcafee.com/corporate/index?page=content&id=SB10349

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-23885), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.