CVE-2025-21416: Missing authorization in Azure Virtual Desktop allows an authorized attacker to elevate privileges over a netw

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HIGH 8.5WATCHLISTMITIGATE

CVE-2025-21416 is a high-severity flaw (CVSS 8.5) affecting azure virtual desktop. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-862
Published	2025-04-30
Last modified	2026-06-17

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-04-30 18:15 UTCPublished CVE record published
2026-06-17 08:43 UTCUpdated Record last modified

microsoft azure virtual desktop MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy azure-virtual-desktop || rpm -q azure-virtual-desktop || azure-virtual-desktop --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-21416?

azure virtual desktop: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-21416 being exploited?

CVE-2025-21416 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-21416 affect?

CVE-2025-21416 affects azure virtual desktop. Severity is high (CVSS 8.5). Missing authorization in Azure Virtual Desktop allows an authorized attacker to elevate privileges over a network.

How urgent is CVE-2025-21416?

Priority 49/100. High severity; On your watchlist

Software pages

Azure vulnerabilities

References

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