HIGH 8.8 Microsoft
CVE-2026-47645
Microsoft 365 Copilot's Business Chat Elevation of Privilege Vulnerability
Microsoft Security Update 2026-Jun: Microsoft 365 Copilot's Business Chat Elevation of Privilege Vulnerability
Affected Products
- Microsoft 365 Copilot
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47645
- https://nvd.nist.gov/vuln/detail/CVE-2026-47645
This high severity vulnerability with a CVSS score of 8.8 was published on 2026-06-09 via Microsoft. Affected: Microsoft 365 Copilot.
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