CVE-2026-84869

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

9.9 CriticalIn KEV

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.92%Up 0.5 points since Sep 9, 2026

What each source reports

CVE List Score used 9.9

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

Record: CVE-2026-84869
CVSS 3.1: 9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-862, CWE-269
Updated: 2026-11-02

EUVDEUVD-2026-74053 9.9

Record: EUVD-2026-74053
CVSS 3.1: 9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-rc8v-f46m-jcgm 9.9

A condition in the ScreenConnect client may allow files to be transferred and executed through an...

Record: GHSA-rc8v-f46m-jcgm
CVSS 3.1: 9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-269
Updated: 2026-11-02

CISA KEV No score

ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability

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.

Record: CVE-2026-84869
Weakness: CWE-269, CWE-862
Updated: 2026-11-02

NVD 9.9

Record: CVE-2026-84869
CVSS 3.1: 9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-269, CWE-862
Updated: 2026-11-02

Affected products

connectwise screenconnect

History

History
Recorded	Changed	Sources
Nov 3, 2026	exploitation
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, CISA KEV, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-84869 is a critical vulnerability (CVSS 9.9) in Connectwise Screenconnect, published September 8, 2026. CISA lists it as known to be exploited, since September 11, 2026. EUVD reports exploitation since September 11, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.92%, the 60th percentile. No source names a fixed version.