CVE-2026-55145

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

CVSS v3 6.3 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.1 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55145	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:copilot:-:*:*:*:*:*:*:*

History

22 Jul 2026, 16:26

Type	Values Removed	Values Added
First Time		Microsoft copilot Microsoft
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55145 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55145 - Vendor Advisory
CPE		cpe:2.3:a:microsoft:copilot:-:::::::*

14 Jul 2026, 18:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-14 18:18

Updated : 2026-07-22 16:26

NVD link : CVE-2026-55145

Mitre link : CVE-2026-55145

CVE.ORG link : CVE-2026-55145

JSON object : View

Products Affected

microsoft

copilot

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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