Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.

Project Subscriptions

Vendors Products
Microsoft Subscribe
365 Copilot Subscribe
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 27 May 2026 16:30:00 +0000

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

Tue, 26 May 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 22 May 2026 22:30:00 +0000

Type Values Removed Values Added
Description Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Title M365 Copilot Information Disclosure 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': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-05-26T16:55:51.728Z

Reserved: 2026-04-30T14:51:12.703Z

Link: CVE-2026-42827

cve-icon Vulnrichment

Updated: 2026-05-26T10:55:25.946Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-22T23:16:54.657

Modified: 2026-05-27T16:27:19.580

Link: CVE-2026-42827

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-23T01:30:05Z

Weaknesses