CVE-2021-23885
highpriority · track · 35EPSS 0.011 · 65 %ileEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://kc.mcafee.com/corporate/index?page=content&id=SB10349cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-23885cnnvd
- https://vigilance.fr/vulnerability/McAfee-Web-Gateway-privilege-escalation-via-troubleshooting-page-34602cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.0603cnnvd
- https://kc.mcafee.com/corporate/index?page=content&id=SB10349enisa_euvd
- https://kc.mcafee.com/corporate/index?page=content&id=SB10349nvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan