CVE-2026-3564

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

17/03/2026

Last modified:

18/03/2026

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.00 CRITICAL
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

9.00

Severity 3.x

CRITICAL

References to Advisories, Solutions, and Tools

https://www.connectwise.com/company/trust/security-bulletins/2026-03-17-screenconnect-bulletin