Security readout for executives and security teams
Plain-English summary
This vulnerability can let someone who can reach a specific Workspace ONE UEM REST API session endpoint overwhelm the API because rate limiting is insufficient. The business impact is service disruption, not confirmed data theft or system takeover in the supplied sources.
Executive priority
Treat this as a service availability risk for device management operations. Prioritize remediation for internet-exposed or broadly reachable UEM consoles, but do not treat it as confirmed active exploitation based on the supplied evidence.
Technical view
CVE-2021-22029 affects VMware Workspace ONE UEM console versions 2105, 2102, 2011, 2008, 2005, and 2001. The issue is improper rate limiting on /API/system/admins/session, allowing a malicious actor with endpoint access to cause API denial of service.
Likely exposure
Exposure is most likely where affected Workspace ONE UEM console versions are still deployed and the relevant REST API endpoint is reachable by untrusted users, broad internal networks, or internet-facing paths.
Exploitation context
The supplied sources do not show CISA KEV listing or active exploitation. The known attack context is denial of service against an API endpoint by an actor who already has access to that path.
Researcher notes
The source bundle provides affected versions and vulnerability class, but no CVSS, CWE, patch details, authentication nuance, or exploitation evidence. Avoid assuming compromise impact beyond API denial of service.
Mitigation direction
- Review VMware VMSA-2021-0017 for vendor-approved remediation.
- Identify and prioritize affected Workspace ONE UEM console versions.
- Restrict API and admin endpoint access to trusted networks and users.
- Monitor API traffic for abnormal session request volume.
- Apply vendor fixes or workarounds if provided by VMware.
Validation and detection
- Inventory Workspace ONE UEM console versions in production and staging.
- Confirm whether /API/system/admins/session is reachable from untrusted networks.
- Review API logs for spikes, repeated failures, or session endpoint errors.
- Confirm remediation status against VMware VMSA-2021-0017.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-22029 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.vmware.com/security/advisories/VMSA-2021-0017.htmlCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.