Description
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an authorized attacker to elevate privileges over a network.
Published: 2026-09-17
Score: 9.9 Critical
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 17 Sep 2026 23:15:00 +0000

Type Values Removed Values Added
Description Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an authorized attacker to elevate privileges over a network.
Title Microsoft 365 Copilot Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft 365 Copilot
Weaknesses CWE-77
CPEs cpe:2.3:a:microsoft:365_copilot:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft 365 Copilot
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Subscriptions

Microsoft 365 Copilot
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-09-18T13:49:51.991Z

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

Link: CVE-2026-85885

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-17T23:18:53.080

Modified: 2026-09-18T13:46:33.503

Link: CVE-2026-85885

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-18T11:15:06Z

Weaknesses