CVE-2026-84869ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability
- Product
- ConnectWise ScreenConnect
- Added to CISA KEV
- September 11, 2026
- Deadline for US federal agencies
- September 14, 2026
- Known ransomware use
- Not known
- EPSS, next 30 days
- 0.9%, higher than 60% of scored CVEs (Oct 25, 2026)
- Weakness
- CWE-269, CWE-862 Missing Authorization
What CISA says
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.
What CISA asks you to do
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.
Sources
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Data from CISA's Known Exploited Vulnerabilities catalog (public domain) and FIRST EPSS, refreshed hourly. Rheono did not find or test this vulnerability; this page summarizes public sources.