CVE-2021-23885

Name: CVE-2021-23885
Creator: NVD / NIST
Published: 2021-02-17T10:15:12.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.09%

Last modified Jun 17, 2026

CVE-2021-23885 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 1.09% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.09%

61.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions
Mcafee	Web Gateway	< 8.2.17
Mcafee	Web Gateway	>= 9.2, < 9.2.8
Mcafee	Web Gateway	>= 10.0, < 10.0.4

References

Timeline

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

Frequently Asked Questions

What is CVE-2021-23885?

How severe is CVE-2021-23885?

CVE-2021-23885 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23885?

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-2021-23885?

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

Scan your code now

Source: NVD / NIST