CVE-2026-84869

CRITICAL9.9

CISA KEV

Published 2026-09-08 · Updated 2026-09-12 · Source 7d616e1a-3288-43b1-a0dd-0a65d3e70a49

Description

A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not impacted.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CWE-269CWE-862

CISA Known-Exploited Vulnerability

Product: ConnectWise — ScreenConnect

Name: ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability

Date added: 2026-09-11 · Due: 2026-09-14

Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

References

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