CVE-2026-85885

Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an authorized attacker to elevate privileges over a network.

CVSS v3 9.9 CRITICAL

9.9^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.1 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85885	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:365_copilot:-:*:*:*:*:*:*:*

History

25 Sep 2026, 20:00

Type	Values Removed	Values Added
CPE		cpe:2.3:a:microsoft:365_copilot:-:::::::*
First Time		Microsoft Microsoft 365 Copilot
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85885 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85885 - Vendor Advisory

17 Sep 2026, 23:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 23:18

Updated : 2026-09-25 20:00

NVD link : CVE-2026-85885

Mitre link : CVE-2026-85885

CVE.ORG link : CVE-2026-85885

JSON object : View

Products Affected

microsoft

365_copilot

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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