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CVE-2026-84869

CRITICAL
9.9 CISA KEVNVD

Summary

generated automatically from NVD data

CVE-2026-84869 affects the ScreenConnect client from ConnectWise, where a condition can let files be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not impacted. The flaw is classed as CWE-269 and rated CRITICAL with a CVSS v3.1 score of 9.9. It is listed in the CISA KEV catalog, which indicates active exploitation.

NVD description

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.

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⚠️ Actively exploited — CISA KEV

This CVE was added to CISA's Known Exploited Vulnerabilities catalog on 2026-09-11. It is confirmed exploited in the wild and must be patched as a priority.

Remediation deadline (US federal agencies): 2026-09-14

EPSS · FIRST.org

0.92%probability of exploitation in the next 30 days

Higher than 59% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-18, recomputed daily by FIRST.org.

In-depth analysis on cveo.tech

We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.

CVSS v3.1 Score

9.9
/ 10.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Information

Published
8 sept. 2026
Updated
12 sept. 2026
Status
Analyzed
Source
7d616e1a-3288-43b1-a0dd-0a65d3e70a49

Affected products

connectwise screenconnect
Versions : 26.6.5.9742

Weaknesses (CWE)

CWE-269CWE-862

References (5)

Similar CVEs

Other vulnerabilities of type CWE-269

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