CVE-2026-42827

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

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42827	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-05-22 23:16

Updated : 2026-07-23 11:10

NVD link : CVE-2026-42827

Mitre link : CVE-2026-42827

CVE.ORG link : CVE-2026-42827

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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