CRITICAL 9.9 Microsoft
CVE-2026-85885
Microsoft 365 Copilot Elevation of Privilege Vulnerability
Microsoft Security Update 2026-Sep: Microsoft 365 Copilot Elevation of Privilege Vulnerability
Affected Products
- Microsoft 365 Copilot
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85885
- https://nvd.nist.gov/vuln/detail/CVE-2026-85885
This critical severity vulnerability with a CVSS score of 9.9 was published on 2026-09-08 via Microsoft. Affected: Microsoft 365 Copilot.
Risk Timeline
CVE Disclosed2026-09-08 · 54 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85885NVD / MITRE
nvd.nist.gov/vuln/detail/CVE-2026-85885Related Vulnerabilities
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