CVE-2021-22054
Omnissa Workspace ONE Server-Side Request Forgery
Omnissa Workspace One UEM
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.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 9 March 2026. US federal agencies were required to remediate it by 23 March 2026.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 99.7%, which is higher than 99.9% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Frequently asked questions
Is CVE-2021-22054 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2021-22054.
What does CVE-2021-22054 affect?
CVE-2021-22054 affects Omnissa Workspace One UEM. 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.
How severe is CVE-2021-22054?
CVE-2021-22054 is rated HIGH with a CVSS base score of 7.5. EPSS puts the probability of exploitation in the next 30 days at 99.7%, higher than 99.9% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 23 March 2026.
How should organisations respond to CVE-2021-22054?
Apply the vendor patch for Omnissa Workspace One UEM as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.