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Vulnerabilities

Vulnerability · CVE-2025-21416

Missing authorization in Azure Virtual Desktop allows an authorized attacker to elevate privileges over a network.

Published Apr 30, 2025 · catalog updated Aug 10, 2026 · Microsoft Azure Virtual Desktop

Check this week

CVE-2025-21416 is not in CISA KEV. FIRST estimates a 79.00% chance of exploitation in the next 30 days. Check whether you run Microsoft Azure Virtual Desktop.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
79.00%
Remediation
Advisory link
Affected products
vendor Microsoft Azure Virtual Desktop -

Missing authorization in Azure Virtual Desktop allows an authorized attacker to elevate privileges over a network.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Microsoft Azure Virtual Desktop --

How to fix CVE-2025-21416

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-21416 is not in CISA KEV. FIRST estimates a 79.00% chance of exploitation in the next 30 days. Check whether you run Microsoft Azure Virtual Desktop.

Which versions are affected?

Compare what you have installed with Microsoft Azure Virtual Desktop - -. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 79.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 30, 2025 · EUVD

    Detected

    Missing authorization in Azure Virtual Desktop allows an authorized attacker to elevate privileges over a network.

  2. Aug 10, 2026 · EUVD

    Updated

    Missing authorization in Azure Virtual Desktop allows an authorized attacker to elevate privileges over a network.

Sources

  • CVE.orgVulnerability recordCVE-2025-21416

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-12761

    Missing authorization in Azure Virtual Desktop allows an authorized attacker to elevate privileges over a network.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.