What is the CVSS score of CVE-2021-22002?

CVE-2021-22002 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.2%.

Is there a patch available for CVE-2021-22002?

Yes, a patch is available for CVE-2021-22002. Update the affected software to the latest version immediately.

Workspace One Access CVE-2021-22002

CRITICAL

Improper Authentication (CWE-287)

2021-08-31 security@vmware.com

Authentication Bypass VMware Cloud Foundation Identity Manager Vrealize Suite Lifecycle Manager Workspace One Access

9.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-287 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Authentication mechanism validation MITRE ATT&CK 2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	A remote attacker could bypass authentication mechanisms to gain unauthorized access by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

Patch available 1.2% exploitation probability (EPSS)

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AnalysisAI

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. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Improper Authentication vulnerability could allow attackers to bypass authentication mechanisms to gain unauthorized access.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. 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. Affected products include: Vmware Identity Manager, Vmware Workspace One Access, Vmware Cloud Foundation, Vmware Vrealize Suite Lifecycle Manager.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

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.

Threat Intelligence Overview

EPSS Score

1.2%

Top 35% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC No

EPSS 1.2%

Patch available Yes

Active threat No

Deciding rule

CRITICAL severity

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +49

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)NVD

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 in Workspace One Access

View all

CVE-2022-22956 CRITICAL Act Now POC

9.8 Apr 13

VMware Workspace ONE Access has two authentication bypass vulnerabilities (CVE-2022-22955 & CVE-2022-22956) in the OAuth

CVE-2022-22954 CRITICAL Emergency POC

9.8 Apr 11

VMware Workspace ONE Access and Identity Manager contain a remote code execution vulnerability due to server-side templa

CVE-2022-22960 HIGH Act Now POC

7.8 Apr 13

VMware Workspace ONE Access, Identity Manager and vRealize Automation contain a privilege escalation vulnerability due t

CVE-2022-22957 HIGH Act Now POC

7.2 Apr 13

VMware Workspace ONE Access, Identity Manager and vRealize Automation contain two remote code execution vulnerabilities

CVE-2022-22972 CRITICAL Act Now POC

9.8 May 20

VMware Workspace ONE Access, Identity Manager and vRealize Automation contain an authentication bypass vulnerability aff

CVE-2022-22955 CRITICAL Act Now

9.8 Apr 13

VMware Workspace ONE Access has two authentication bypass vulnerabilities (CVE-2022-22955 & CVE-2022-22956) in the OAuth

CVE-2021-22057 HIGH This Week

8.8 Dec 20

VMware Workspace ONE Access 21.08, 20.10.0.1, and 20.10 contain an authentication bypass vulnerability. Rated high sever

CVE-2022-22973 HIGH This Week

7.8 May 20

VMware Workspace ONE Access and Identity Manager contain a privilege escalation vulnerability. Rated high severity (CVSS

CVE-2021-22056 HIGH This Week

7.5 Dec 20

VMware Workspace ONE Access 21.08, 20.10.0.1, and 20.10 and Identity Manager 3.3.5, 3.3.4, and 3.3.3 contain an SSRF vul

CVE-2021-22003 HIGH This Week

7.5 Aug 31

VMware Workspace ONE Access and Identity Manager, unintentionally provide a login interface on port 7443. Rated high sev

CVE-2022-22958 HIGH This Week

7.2 Apr 13

VMware Workspace ONE Access, Identity Manager and vRealize Automation contain two remote code execution vulnerabilities

CVE-2023-20884 MEDIUM This Month

6.1 May 30

VMware Workspace ONE Access and VMware Identity Manager contain an insecure redirect vulnerability. Rated medium severit

Same weakness CWE-287 – Improper Authentication

View all

CVE-2022-40684 CRITICAL POC

9.8

CVE-2025-61882 CRITICAL POC

9.8

CVE-2020-0688 HIGH POC

8.8

CVE-2023-46805 HIGH POC

8.2

CVE-2023-35078 CRITICAL POC

9.8

CVE-2015-1187 CRITICAL POC

9.8

CVE-2024-7593 CRITICAL POC

9.8

CVE-2017-7921 CRITICAL POC

9.8

Same technique Authentication Bypass

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CVE-2015-3306 CRITICAL POC

10.0

CVE-2023-22515 CRITICAL POC

9.8

CVE-2012-4681 CRITICAL POC

9.8

CVE-2013-2465 CRITICAL POC

9.8

CVE-2011-3544 CRITICAL POC

9.8

CVE-2024-0012 CRITICAL POC

9.3

References

Advisories & patches

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

Search Externally

GitHub PoC

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