CVE-2026-50653: Azure Active Directory Denial of Service Vulnerability

highCVSS 7.5CVE-2026-50653

Loop with unreachable exit condition ('infinite loop') in Azure Active Directory allows an unauthorized attacker to deny service over a network.

CSIRTS triage

vendor: Microsoft product: Azure Active Directory Denial of service

What: Azure Active Directory has an infinite loop 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.

AI-assisted analysis generated from the source advisory — verify against the original.

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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-2026-50653

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.

Low exploitation riskCVE-2026-506530.78% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 52% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-50653	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

high[NEW] [high] Microsoft Azure: Multiple vulnerabilitiescert-bund
unknownMultiple vulnerabilities in Microsoft Azure (July 15, 2026)cert-fr-avis
unknownNCSC-2026-0233 [1.00] [M/H] Vulnerabilities fixed in Microsoft Azurencsc-nl
highCVE-2026-50653: Loop with unreachable exit condition ('infinite loop') in Azure Active Directory allows an una…nvd

Recent advisories for Azure Active Directory

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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