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CVE-2021-22029

25
FAUCET Score

CVE-2021-22029 describes a denial of service vulnerability within the VMware Workspace ONE UEM REST API. An unauthenticated attacker can exploit improper rate limiting on the /API/system/admins/session endpoint to disrupt API availability. This vulnerability carries a CVSS score of 7.5 (High), indicating a network-based attack with low complexity leading to high impact on availability. While no active exploitation, public exploit code, or significant community discussion has been observed, organizations using affected VMware Workspace ONE UEM Console versions should apply vendor patches.

Impacted Technologies

VendorProductVersion(s)CPE
>= 20.1.0.0, < 20.1.0.33CPE matchmatch criteria
cpe:2.3:a:vmware:workspace_one_uem_console:*:*:*:*:*:*:*:*
>= 20.5.0.0, < 20.5.0.51CPE matchmatch criteria
cpe:2.3:a:vmware:workspace_one_uem_console:*:*:*:*:*:*:*:*
>= 20.8.0.0, < 20.8.0.32CPE matchmatch criteria
cpe:2.3:a:vmware:workspace_one_uem_console:*:*:*:*:*:*:*:*
>= 20.11.0.0, < 20.11.0.30CPE matchmatch criteria
cpe:2.3:a:vmware:workspace_one_uem_console:*:*:*:*:*:*:*:*
>= 21.2.0.0, < 21.2.0.14CPE matchmatch criteria
cpe:2.3:a:vmware:workspace_one_uem_console:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.96%
Probability of exploitation in next 30 days
EPSS Percentile
57.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0096 is in the 33rd percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

vmwarevendor investigatingvia nvd_reference
View patch

References

vmware.com / security/advisories/VMSA-2021-0017.html
Vendor Advisory