CVE-2021-22019

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% 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 denial-of-service vulnerability in VAPI (vCenter API) service. A malicious actor with network access to port 5480 on vCenter Server may exploit this issue by sending a specially crafted jsonrpc message to create a denial of service condition.

Affected products

VMware Cloud Foundation: from 3.0 before 3.10.2.2; from 4.0 before 4.3 — fixed in 3.10.2.2, 4.3
VMware vCenter Server: 6.5, 6.7, 7.0
VMware vCenter Server, VMware Cloud Foundation: VMware vCenter Server(7.x before 7.0 U2c, 6.7 before 6.7 U3o and 6.5 before 6.5 U3q) 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 3.10.2.2, 4.3. Check the vendor advisory for mitigations.

References

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