Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Microsoft
  • 365 Copilot

No data.

No data.

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Vendors Products
References
Link Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42895 cve-icon
History

Fri, 19 Jun 2026 21:15:00 +0000

Type Values Removed Values Added
Description Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.
Title Microsoft Copilot Tampering 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:N/I:H/A:N/E:U/RL:O/RC:C'}
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-06-19T20:27:46.785Z

Reserved: 2026-04-30T22:35:54.967Z

Link: CVE-2026-42895

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-19T22:30:05Z