Cyber Resilience

CVE-2021-22054

SSRF in Vmware Workspace One Uem Console 20.0.8.0 – 20.0.8.36

CISA KEVActive ExploitationEUVD ExploitedSSRF
Published
17 December 2021
Modified
10 March 2026
KEV Added
09 March 2026
Patch / advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.97 99.9th percentile
Risk Priority 84 floored blend · peak EPSS

Summary

CVE-2021-22054 is a high-severity SSRF (CWE-918) vulnerability in Vmware Workspace One Uem Console. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 0.1% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

VMware Workspace ONE UEM console versions 20.0.8 prior to 20.0.8.37, 20.11.0 prior to 20.11.0.40, 21.2.0 prior to 21.2.0.27, and 21.5.0 prior to 21.5.0.37 contain a server-side request forgery vulnerability tracked as CVE-2021-22054 and CWE-918. The flaw carries a CVSS 3.1 score of 7.5 and resides in the console component that processes unauthenticated network requests.

An attacker with network access to the UEM console can exploit the issue without authentication to submit arbitrary requests through the affected server, resulting in unauthorized disclosure of sensitive information.

The official VMware advisory VMSA-2021-0029 details the affected releases and corresponding fixed builds that remediate the SSRF vector. CISA has added the CVE to its catalog of known exploited vulnerabilities, and GreyNoise has reported an observed surge in SSRF exploitation attempts that includes this class of flaw.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

VMware Workspace ONE UEM console 20.0.8 prior to 20.0.8.37, 20.11.0 prior to 20.11.0.40, 21.2.0 prior to 21.2.0.27, and 21.5.0 prior to 21.5.0.37 contain an SSRF vulnerability. This issue may allow a malicious actor with network access to UEM to send…

more

their requests without authentication and to gain access to sensitive information.

CWE(s)
KEV Date Added
09 March 2026

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2021-21973Same vendor: Vmwareboth on KEV
CVE-2021-21975Same vendor: Vmwareboth on KEV
CVE-2021-22005Same vendor: Vmwareboth on KEV
CVE-2021-21972Same vendor: Vmwareboth on KEV
CVE-2026-41854Same vendor: Vmware
CVE-2021-26855Shared CWE-918both on KEV
CVE-2022-41040Shared CWE-918both on KEV
CVE-2020-5410Same vendor: Vmwareboth on KEV
CVE-2026-20230Shared CWE-918both on KEV
CVE-2023-41763Shared CWE-918both on KEV

Affected Assets

vmware
workspace one uem console
20.0.8.0 — 20.0.8.36 · 20.11.0.0 — 20.11.0.40 · 21.2.0.0 — 21.2.0.27

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V1.3.6
  • V1.5.3
  • V5.3.2
  • V10.4.7

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-918

Penetration testing attempts server-side requests to internal resources, identifying SSRF weaknesses for remediation.

addresses: CWE-918

Outbound connections to external resources can be monitored and limited at the boundary, reducing SSRF impact.

addresses: CWE-918

Validates server-side URLs and resource references to block SSRF attempts.

addresses: CWE-918

Detects server-side request forgery through monitoring of unexpected outbound connections.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure development practices directly include input validation and destination allow-listing that prevent SSRF.

DE.CM-09 partial match
prevents

Runtime monitoring of web applications and services can detect anomalous outbound requests indicative of SSRF.

ID.RA-01 partial match
prevents

Vulnerability identification processes can discover and record SSRF flaws in web applications.

PR.IR-01 partial match
prevents

Network segmentation and egress controls can limit the damage from successful SSRF requests.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Operational threat data describing SSRF campaigns can be used to tighten outbound-request allow-lists and detection rules before attackers exploit them.

References