PT-2026-25901 · Connectwise · Screenconnect

Published 2026-03-17 · Updated 2026-03-17 · CVE-2026-3564

NVD

CVSS v3.1

9.0

9.0

Critical

Base vector

AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

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.

Fix

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

CVE-2026-3564

Affected Products

Screenconnect

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-3564 · Security Note
• https://connectwise.com/company/trust/security-bulletins/2026-03-17-screenconnect-bulletin · Note