CVE-2021-22054 Omnissa Workspace One UEM: web page flaw
In plain words: A web app can be made to act on someone's behalf or reach places it should not. Stolen sessions, actions taken as the victim, or access to internal systems.
Confirmed exploited by CISA on · US federal patch deadline Mar 23, 2026
What to do
- Install Omnissa's security update for Workspace One UEM. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Keep a list of every internet-facing server you run so nothing is forgotten.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.
The details
- Official name
- Omnissa Workspace ONE Server-Side Request Forgery
- Product
- Omnissa Workspace One UEM
- CISA description
- Omnissa Workspace One UEM formerly known as VMware Workspace One UEM contains a server-side request forgery (SSRF) vulnerability that could allow a malicious actor with network access to UEM to send their requests without authentication and to gain access to sensitive information.
- Type of flaw
- Web page flaw (CWE-918)
- Confirmed exploited
- Mar 9, 2026
- US federal patch deadline
- Mar 23, 2026
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Answering about CVE-2021-22054 ·
Questions about CVE-2021-22054
Is CVE-2021-22054 being exploited?
Yes. CISA added CVE-2021-22054 to its Known Exploited Vulnerabilities catalog on Mar 9, 2026, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2021-22054?
Install Omnissa's security update for Workspace One UEM. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.
Am I affected by CVE-2021-22054?
Only if you use Omnissa Workspace One UEM. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.