CVE-2021-22002 [Critical] | Authentication Bypass in Identity Manager

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.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.37%	1.17%	+0.80%
2	2026-02-05	0.30%	0.37%	+0.07%
3	2026-01-28	—	0.30%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.37%

1.17%

+0.80%

2026-02-05

0.30%

0.37%

+0.07%

2026-01-28

—

0.30%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	5.9	[email protected]
7.5	2.0	HIGH	`AV:N/AC:L/Au:N/C:P/I:P/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	10.0	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.8

3.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

3.9

5.9

[email protected]

7.5

2.0

HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:P): Partial availability impact.

10.0

6.4

[email protected]

Affected software / configurations for CVE-2021-22002

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

References for CVE-2021-22002

URL	Tags
https://www.vmware.com/security/advisories/VMSA-2021-0016.html	Patch Vendor Advisory

URL

CVE-2021-22002

Exploit prediction scoring system (EPSS) score for CVE-2021-22002

Common vulnerability scoring system (CVSS) metrics for CVE-2021-22002

Weakness enumeration for CVE-2021-22002

Affected software / configurations for CVE-2021-22002

References for CVE-2021-22002