Incorrect permission assignment for critical resource in M365 Copilot allows an authorized attacker to disclose information over a network.
History

Mon, 28 Sep 2026 18:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:365_copilot:-:*:*:*:*:*:*:*

Sun, 20 Sep 2026 03:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 17 Sep 2026 23:30:00 +0000

Type Values Removed Values Added
Description Incorrect permission assignment for critical resource in M365 Copilot allows an authorized attacker to disclose information over a network.
Title M365 Copilot Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft 365 Copilot
Weaknesses CWE-732
CPEs cpe:2.3:a:microsoft:365_copilot:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft 365 Copilot
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C'}


cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-09-17T23:04:48.423Z

Updated: 2026-10-14T23:15:02.707Z

Reserved: 2026-09-04T18:18:19.327Z

Link: CVE-2026-85887

cve-icon Vulnrichment

Updated: 2026-09-18T14:30:47.122Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-18T00:17:47.920

Modified: 2026-09-28T18:37:31.143

Link: CVE-2026-85887

cve-icon Redhat

No data.