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CVE-2026-50652: Azure Active Directory Denial of Service Vulnerability

highCVSS 7.5CVE-2026-50652
Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.

CSIRTS triage

vendor: Microsoftproduct: Azure Active DirectoryDenial of service
What
Azure Active Directory has a deserialization vulnerability that allows denial of service.
Who is affected
Unauthorized users targeting Azure Active Directory are affected.
Urgency
Remediation is urgent due to the high severity of the vulnerability.
Action
Update Azure Active Directory to the latest version.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 7.5
Published
2026-07-14
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50652

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-50652coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

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