CVE-2026-84869: ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability

Added to the CISA Known Exploited Vulnerabilities catalog on 11 Sep 2026. Vendor: ConnectWise. Product: ScreenConnect.

ConnectWise ScreenConnect contains both an improper privilege management and missing authorization vulnerability that may allow an attacker to file transfer and execution through an active remote sessions without authorization or host confirmation.

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. (due 14 Sep 2026)