Exploited vulnerability CISA KEV
CVE-2026-84869: ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability
CVE-2026-84869 is a vulnerability in ConnectWise ScreenConnect that CISA added to its Known Exploited Vulnerabilities catalog on September 11, 2026, meaning there is evidence it is being exploited. US federal civilian agencies must complete the required action by September 14, 2026.
CVE-2026-84869 is a vulnerability in ConnectWise ScreenConnect that CISA added to its Known Exploited Vulnerabilities catalog on September 11, 2026, meaning there is evidence it is being exploited. US federal civilian agencies must complete the required action by September 14, 2026.
- CVE ID
- CVE-2026-84869
- Vendor / project
- ConnectWise
- Product
- ScreenConnect
- Added to KEV
- Due date
- Days to remediate
- 3
- Known ransomware use
- Unknown
CISA description #
ConnectWise ScreenConnect contains both an improper privilege management and missing authorization vulnerability that may allow an attacker to transfer and execute files through an active remote session 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.
Notes and references #
https://www.connectwise.com/company/trust/security-bulletins/2026-09-08-screenconnect-bulletin ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-84869
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