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CVE-2026-59115: Microsoft Entra Provisioning Service Elevation of Privilege Vulnerability

criticalCVSS 9.9CVE-2026-59115
'.../...//' in Microsoft Entra Provisioning Service (SyncFabric) allows an authorized attacker to elevate privileges over a network.

CSIRTS triage

vendor: Microsoftproduct: Microsoft Entra Provisioning ServicePrivilege escalation
What
Path traversal-like issue ('.../...//' pattern) allows authorized attackers to elevate privileges over the network.
Who is affected
Deployments of Microsoft Entra Provisioning Service (SyncFabric) are affected.
Urgency
Critical severity (CVSS 9.9); not yet exploited but requires immediate remediation.
Action
Apply the latest security patch from Microsoft for Entra Provisioning Service.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
critical — CVSS 9.9
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59115

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-59115coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

Recent advisories for Microsoft Entra Provisioning

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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