ScreenConnect Client: Guest-to-Host File Execution via File-Transfer Actions

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What is CVE-2026-84869?

CVE-2026-84869 is a vulnerability classified as Missing Authorization and Improper Privilege Management, affecting ScreenConnect (affected versions: All versions prior to 26.6.5). This vulnerability is rated Critical, with a CVSS score of 9.9. This vulnerability has been observed being exploited in the wild.

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Overview

Original source data

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.

Affected products and scope

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Technical details

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Exploitability

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Technical impact

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Business impact

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Remediation

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Detection

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