CVE-2021-22006

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-09-23 · updated 2026-06-17

Description

The vCenter Server contains a reverse proxy bypass vulnerability due to the way the endpoints handle the URI. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to access restricted endpoints.

Affected products

VMware Cloud Foundation: from 3.0 before 5.0 — fixed in 5.0
VMware vCenter Server: 6.7, 7.0
VMware vCenter Server, VMware Cloud Foundation: VMware vCenter Server(7.x before 7.0 U2c and 6.7 before 6.7 U3o) and VMware Cloud Foundation (4.x before 4.3 and 3.x before 3.10.2.2)

How to fix

Upgrade to a fixed version: VMware Cloud Foundation 5.0. Check the vendor advisory for mitigations.

References

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