CVE-2026-24307

Improper validation of specified type of input in M365 Copilot allows an unauthorized attacker to disclose information over a network.

CVSS v3 9.3 CRITICAL

9.3^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24307	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

17 Jun 2026, 10:22

Type	Values Removed	Values Added
Summary		(es) Validación incorrecta del tipo de entrada especificado en M365 Copilot permite a un atacante no autorizado divulgar información a través de una red.

12 Feb 2026, 17:29

Type	Values Removed	Values Added
CPE		cpe:2.3:a:microsoft:365_copilot:-:::::::*
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24307 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24307 - Vendor Advisory
First Time		Microsoft 365 Copilot Microsoft

22 Jan 2026, 23:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-22 23:15

Updated : 2026-06-17 10:22

NVD link : CVE-2026-24307

Mitre link : CVE-2026-24307

CVE.ORG link : CVE-2026-24307

JSON object : View

Products Affected

microsoft

365_copilot

CWE

CWE-1287

Improper Validation of Specified Type of Input

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