CVE-2026-66800
An attacker can exploit multiple vulnerabilities in Microsoft Azure, Microsoft Entra ID and Microsoft Exchange Online to execute arbitrary code, escalate privileges or disclose confidential information.
CSIRTS triage
- What
- Multiple vulnerabilities across Microsoft Azure, Entra ID, and Exchange Online enable remote code execution, privilege escalation, and information disclosure.
- Who is affected
- Organizations using Microsoft Azure, Entra ID, and Exchange Online are affected.
- Urgency
- High priority; RCE and privilege escalation across critical cloud services require immediate remediation.
- Action
- Apply Microsoft security patches for all listed CVEs affecting Azure, Entra ID, and Exchange Online.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.99% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 60% of all EPSS-scored CVEs.
Advisory coverage (3)
- high[NEW] [high] Microsoft Azure, Entra ID and Exchange: Multiple vulnerabilitiescert-bund · 2026-08-24
- highCVE-2026-66800: Server-side request forgery (ssrf) in Azure Data Factory allows an unauthorized attacker to di…nvd · 2026-08-20
- highCVE-2026-66800: Azure Data Factory Information Disclosure Vulnerabilitymsrc · 2026-08-11
External references
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[](https://www.csirts.com/cve/CVE-2026-66800)