CVE Catalog

Actively exploited in the wild

ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability

ConnectWise - ScreenConnect · Listed in the CISA KEV since 2026-09-11. This indicates confirmed attacks in production environments.

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.

CVE-2026-84869

CriticalCVSS 9.9KEV
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Elevated risk
0.69%

51th percentile - higher than 51% of all known CVEs

Summary

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.

Risk Assessment

Unauthorized file transfer and execution could lead to malware installation on the client machine, potentially resulting in data compromise or system takeover.

Recommendation

Upgrade the ScreenConnect client to the latest patched version and consider enforcing Host confirmation for file transfers.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS