Unrated severityNVD Advisory· Published Jul 24, 2026· Updated Aug 3, 2026
Microsoft M365 Copilot Remote Code Execution Vulnerability
CVE-2026-50517
Description
Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code over a network.
Affected products
1Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50517mitrevendor-advisorypatch
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