CVE-2021-22017
VMware vCenter Server Improper Access Control
VMware vCenter ServerContainers & cloud
CVSS
5.3MediumExploit odds (EPSS)49.2%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
CISA required actionApply updates per vendor instructions. CISA KEV
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Timeline
Public exploit code and templates 1
- Scanner templatevCenter Server - Improper Access ControlNuclei
Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.
Description
Rhttproxy as used in vCenter Server contains a vulnerability due to improper implementation of URI normalization.
Text from CVE List
Affected versions 1
- VMware vCenter Server, VMware Cloud Foundationaffected: VMware vCenter Server(6.7 before 6.7 U3o and 6.5 before 6.5 U3q) and VMware Cloud Foundation 3.x before 3.10.2.2CVE List