CVE-2021-22002

CVE-2021-22002 is a critical-severity vulnerability in Vmware Identity Manager with a CVSS 3.x base score of 9.8. 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-287.

Key facts

• Severity: Critical (CVSS 3.x base score 9.8)
• CVSS v2: 7.5
• EPSS exploit prediction: 1% (65th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-287
• Affected product: Vmware Identity Manager
• Published: 2021-08-31
• Last modified: 2026-06-17

Description

VMware Workspace ONE Access and Identity Manager, allow the /cfg web app and diagnostic endpoints, on port 8443, to be accessed via port 443 using a custom host header. A malicious actor with network access to port 443 could tamper with host headers to facilitate access to the /cfg web app, in addition a malicious actor could access /cfg diagnostic endpoints without authentication.

Frequently asked questions

What is CVE-2021-22002?

VMware Workspace ONE Access and Identity Manager, allow the /cfg web app and diagnostic endpoints, on port 8443, to be accessed via port 443 using a custom host header. A malicious actor with network access to port 443 could tamper with host headers to facilitate access to the /cfg web app, in addition a malicious actor could access /cfg diagnostic endpoints without authentication.

How severe is CVE-2021-22002?

CVE-2021-22002 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-22002 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22002?

CVE-2021-22002 primarily affects Vmware Identity Manager. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22002?

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

When was CVE-2021-22002 published?

CVE-2021-22002 was published on 2021-08-31 and last updated on 2026-06-17.

References

• https://www.vmware.com/security/advisories/VMSA-2021-0016.html

Affected products (16)

• cpe:2.3:a:vmware:identity_manager:3.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:identity_manager:3.3.3:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:identity_manager:3.3.4:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:identity_manager:3.3.5:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:workspace_one_access:20.01:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:workspace_one_access:20.10:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:workspace_one_access:20.10.01:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:cloud_foundation:4.0:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:cloud_foundation:4.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:cloud_foundation:4.1:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:cloud_foundation:4.1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:cloud_foundation:4.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:vrealize_suite_lifecycle_manager:8.0:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:vrealize_suite_lifecycle_manager:8.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:vrealize_suite_lifecycle_manager:8.1:*:*:*:*:*:*:*
• cpe:2.3:a:vmware:vrealize_suite_lifecycle_manager:8.2:*:*:*:*:*:*:*

More vulnerabilities in Vmware Identity Manager

• CVE-2022-31657 — Critical (CVSS 9.8): VMware Workspace ONE Access and Identity Manager contain a URL injection vulnerability. A malicious actor with network…
• CVE-2022-31656 — Critical (CVSS 9.8): VMware Workspace ONE Access, Identity Manager and vRealize Automation contain an authentication bypass vulnerability…
• CVE-2022-22972 — Critical (CVSS 9.8): VMware Workspace ONE Access, Identity Manager and vRealize Automation contain an authentication bypass vulnerability…
• CVE-2022-22956 — Critical (CVSS 9.8): VMware Workspace ONE Access has two authentication bypass vulnerabilities (CVE-2022-22955 & CVE-2022-22956) in the…
• CVE-2022-22955 — Critical (CVSS 9.8): VMware Workspace ONE Access has two authentication bypass vulnerabilities (CVE-2022-22955 & CVE-2022-22956) in the…
• CVE-2022-22954 — Critical (CVSS 9.8): VMware Workspace ONE Access and Identity Manager contain a remote code execution vulnerability due to server-side…

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Other CWE-287 (Improper Authentication) vulnerabilities

• CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
• CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
• CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
• CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
• CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
• CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

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