How severe is CVE-2021-22012?

CVE-2021-22012 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-22012 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22012?

CVE-2021-22012 primarily affects Vmware Cloud Foundation. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22012?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-22012 published?

CVE-2021-22012 was published on 2021-09-23 and last updated on 2026-06-17.

CVE-2021-22012

CVE-2021-22012 is a high-severity vulnerability in Vmware Cloud Foundation with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Vmware Cloud Foundation
Published: 2021-09-23
Last modified: 2026-06-17

Description

The vCenter Server contains an information disclosure vulnerability due to an unauthenticated appliance management API. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to gain access to sensitive information.

Frequently asked questions

What is CVE-2021-22012?: The vCenter Server contains an information disclosure vulnerability due to an unauthenticated appliance management API. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to gain access to sensitive information.
How severe is CVE-2021-22012?: CVE-2021-22012 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-22012 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22012?: CVE-2021-22012 primarily affects Vmware Cloud Foundation. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22012?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-22012 published?: CVE-2021-22012 was published on 2021-09-23 and last updated on 2026-06-17.

References

https://www.vmware.com/security/advisories/VMSA-2021-0020.html

Affected products (3)

cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:6.7:-:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:*

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