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CVE-2026-24307

CRITICAL CVSS 3.1: 9.3 EPSS 0.15%
Updated Jan 22, 2026
Parameter Value
CVSS 9.3 (CRITICAL)
Type CWE-1287
Public PoC No

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

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)