Unrated severityNVD Advisory· Published Jun 19, 2026
Microsoft 365 Copilot's Business Chat Elevation of Privilege Vulnerability
CVE-2026-47645
Description
Url redirection to untrusted site ('open redirect') in Microsoft 365 Copilot's Business Chat allows an unauthorized attacker to elevate privileges over a network.
Affected products
1Patches
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47645mitrevendor-advisorypatch
News mentions
1- Microsoft Cloud Batch: 13 CVEs Across Copilot, Azure, Exchange, and Developer ToolsVypr Intelligence · Jun 19, 2026