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CVE-2026-3564

CRITICAL CVSS 3.1: 9.0 EPSS 0.05%
Updated Mar 18, 2026
Parameter Value
CVSS 9.0 (CRITICAL)
Type CWE-347 (Improper Verification of Cryptographic Signature)
Public PoC No

A condition in ScreenConnect may allow an actor with access to server-level cryptographic material used for authentication to obtain unauthorized access, including elevated privileges, in certain scenarios.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1