ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2021-22011

vCenter Server contains an unauthenticated API endpoint vulnerability in vCenter Server Content Library.

Published Sep 23, 2021 · catalog updated Jun 17, 2026 · cloud foundation

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2021-22011. EPSS is 1.09%. Act only if a listed version of cloud foundation is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.09%
Remediation
Version ranges on file
Affected products
cpe vmware/cloud foundation · cpe vmware/vcenter server

vCenter Server contains an unauthenticated API endpoint vulnerability in vCenter Server Content Library. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to perform unauthenticated VM network setting manipulation.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe vmware/cloud foundation< 5.0
  • cpe vmware/vcenter server6.5
  • cpe vmware/vcenter server6.7
  • cpe vmware/vcenter server7.0

How to fix CVE-2021-22011

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2021-22011. EPSS is 1.09%. Act only if a listed version of cloud foundation is installed.

Which versions are affected?

Compare what you have installed with vmware/cloud foundation < 5.0; vmware/vcenter server 6.5; vmware/vcenter server 6.7; vmware/vcenter server 7.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 1.09%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

VMware security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 23, 2021 · Monitored products — critical

    Detected

    vCenter Server contains an unauthenticated API endpoint vulnerability in vCenter Server Content Library. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to perform unauthenticated VM network setting manipulation.

  2. Jun 17, 2026 · Monitored products — critical

    Updated

    vCenter Server contains an unauthenticated API endpoint vulnerability in vCenter Server Content Library. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to perform unauthenticated VM network setting manipulation.

Sources

  • CVE.orgVulnerability recordCVE-2021-22011

    Official CVE identifier

    cve.org
  • Monitored products — criticalVendor advisoryCVE-2021-22011

    vCenter Server contains an unauthenticated API endpoint vulnerability in vCenter Server Content Library. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to perform unauthenticated VM network setting manipulation.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Monitored products — criticalNov 6, 2026
  • CVE.orgNov 2, 2026