๐Ÿ” CVE Alert

CVE-2026-3564

CRITICAL 9.0

ScreenConnect Instance Level Cryptographic Material Exposure

CVSS Score
9.0
EPSS Score
0.4%
EPSS Percentile
28th

A condition in the ScreenConnect server component may allow an actor with access to server-level cryptographic material used for authentication to obtain unauthorized access, including elevated privileges, in certain scenarios. ScreenConnect host and guest client agents are not independently affected by this CVE.

CWE CWE-347
Vendor connectwise
Product screenconnect
Published Mar 17, 2026
Last Updated Jul 9, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

ConnectWise / ScreenConnect
All server versions prior to 26.1

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
connectwise.com: https://www.connectwise.com/company/trust/security-bulletins/2026-03-17-screenconnect-bulletin