High severity7.7NVD Advisory· Published Sep 18, 2026· Updated Sep 28, 2026
CVE-2026-85887
CVE-2026-85887
Description
Incorrect permission assignment for critical resource in M365 Copilot allows an authorized attacker to disclose information over a network.
Affected products
2- cpe:2.3:a:microsoft:365_copilot:-:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85887nvdVendor Advisory
News mentions
1- Microsoft: 24 Azure & AI Vulnerabilities Disclosed, Including Critical Privilege Escalation FlawsVypr Intelligence · Sep 18, 2026