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CISA KEV · ACTIVELY EXPLOITED
HIGH severity

CVE-2021-22054

HIGH

CVE-2021-22054 is a high-severity (CVSS 7.5) Server-Side Request Forgery (SSRF) vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2026-03-09) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.

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…

Published
Updated
Affected
1 product
Patched
See advisory
Exploits
2 known
Exploitation data as of Oct 21, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

  • Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2026-03-09. Federal agencies were required to remediate by 2026-03-23.
  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2021-22054.

EPSS Exploitation Probability

via FIRST.org ↗
99.7%probability of exploitation in next 30 days
Very High Risk0.00%
Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk
92.1%94.7%97.4%100.0%93.8%99.7%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2021-22054 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).

Where this sits among everything scored

Of 394,803 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.

Description

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

Affected Products

1 product · 4 configurations
Application
workspace one uem consolevmware
≥ 21.5.0.0 && < 21.5.0.37
range
Exploits & PoCs
2

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2021-22054 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Restrict outbound requests from the affected component to an allowlist of hosts, block access to link-local and internal address ranges at the network layer, and require authentication on internal services so a forged request cannot reach them unauthenticated.

How to detect CVE-2021-22054

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2021-22054 -u https://target
Template
VMWare Workspace ONE UEM - Server-Side Request Forgery
Severity
high
Impact
An attacker can exploit this vulnerability to send crafted requests to internal resources, potentially leading to unauthorized access or information disclosure.
Remediation
Apply the necessary patches or updates provided by VMWare to fix the vulnerability.

Template by ProjectDiscovery nuclei-templates (h1ei1), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

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 their requests without authentication and to gain access to sensitive information.
O3 Security · Impact-Aware SCA

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Actively Exploited: CVE-2021-22054: SSRF (High 7.5)