At a glance
Actively exploited in the wild — prioritise confirming exposure.
Medium rather than High: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on Omnissa Workspace One UEM, treat it as High.
Briefing
- Do not treat uncorroborated claims as confirmed breaches.
Questions to ask IT
- Do we run Omnissa Workspace One UEM, and is every instance on a fixed release (20.0.8.37, 20.11.0.40, 21.2.0.27 or 21.5.0.37, or later)?
- Is any of it reachable from the internet?
- Have we checked whether it has already been used against us?
- If it is not yet patched, what mitigation is in place, and will the fix be done by 16 Nov?
Next steps
- Confirm exposure, mitigation status and any service interruption risk.
Vulnerability facts
Full CVE detail CVE-2021-22054- 7.5 · HighExploitable over the network without any account, and no one has to click or open anything. High impact on confidentiality.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Listed: attacks using it have been seen (on the catalogue since )
- Elevated attack likelihood (~99.7% in 30 days)
- 20.0.8 before 20.0.8.37, 20.11.0 before 20.11.0.40, 21.2.0 before 21.2.0.27, 21.5.0 before 21.5.0.37
- 20.0.8.37, 20.11.0.40, 21.2.0.27, 21.5.0.37
Versions are as the CVE record states them; check the vendor advisory before planning a fix.
No technical write-up beyond these facts and the summary below yet.
Next steps
- Confirm whether affected products/versions are present and prioritise patching or mitigations
Summary
- 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.
- CVE-2021-22054 is listed in known-exploited catalogue (exploitation in the wild)
- Authoritative catalogues report active exploitation of this vulnerability.
Why this matters in the UK
- Known-exploited catalogue reports exploitation in the wild
Products and services involved
- Omnissa Workspace One UEM82% match confidence · CVE-2021-22054
Pulse
Last checked 58m ago · Next recheck 10 Nov 2026, 02:05 UK time · 4 quiet checks collapsed
in the next 30 days first recorded at 99.7% (elevated likelihood signal, not confirmed exploitation). Suggested changed to 7d.
Elevated — confirm exposure; this is a probability signal, not confirmed exploitation.
2 quiet checks hidden.
Sources
Omnissa Workspace ONE Server-Side Request Forgery
How we know
Statements extracted from sources. Higher confidence means stronger corroboration.
- ConfirmedHeadline90% confidence
Omnissa Workspace ONE Server-Side Request Forgery
- ConfirmedSummary fact75% confidence
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. Affects Omnissa Workspace One UEM. Known ransomware campaign use: Unknown.
- ConfirmedCVE identifier95% confidence
Event involves CVE-2021-22054
- ConfirmedKnown-exploited catalogue98% confidence
CVE-2021-22054 is listed in known-exploited catalogue (exploitation in the wild)