CRITICAL 10.0 Microsoft
CVE-2026-65801
Microsoft Exchange Online Elevation of Privilege Vulnerability
Microsoft Security Update 2026-Aug: Microsoft Exchange Online Elevation of Privilege Vulnerability
Affected Products
- Microsoft Exchange Online
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65801
- https://nvd.nist.gov/vuln/detail/CVE-2026-65801
This critical severity vulnerability with a CVSS score of 10.0 was published on 2026-08-11 via Microsoft. Affected: Microsoft Exchange Online.
Risk Timeline
CVE Disclosed2026-08-11 · 54 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65801NVD / MITRE
nvd.nist.gov/vuln/detail/CVE-2026-65801Related Vulnerabilities
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|---|---|---|---|
| CVE-2026-69843 | Microsoft Fabric Elevation of Privilege Vulnerability | CRITICAL | 10.0 |
| CVE-2026-83711 | Microsoft Azure Active Directory B2C Elevation of Privilege Vulnerability | CRITICAL | 10.0 |
| CVE-2025-65041 | Microsoft Partner Center Elevation of Privilege Vulnerability | CRITICAL | 10.0 |
| CVE-2025-55241 | Azure Entra ID Elevation of Privilege Vulnerability | CRITICAL | 10.0 |
| CVE-2026-63508 | Microsoft Planetary Computer Pro Elevation of Privilege Vulnerability | CRITICAL | 10.0 |
| CVE-2026-65667 | Microsoft Teams Elevation of Privilege Vulnerability | CRITICAL | 10.0 |
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