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.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Microsoft
  • 365 Copilot

No data.

No data.

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

Tue, 23 Jun 2026 03:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

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

Updated: 2026-07-01T20:13:21.494Z

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

Link: CVE-2026-42895

cve-icon Vulnrichment

Updated: 2026-06-23T02:27:08.210Z

cve-icon NVD

No data.

cve-icon Redhat

No data.