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CVE-2026-84869

9.9 · CRITICALActively Exploited

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.

Published Sep 8, 2026connectwiseCWE-269EPSS 0.92%

Overview

CVE-2026-84869 is a critical-severity vulnerability affecting connectwise screenconnect. It was published on September 8, 2026 and has a CVSS 3.1 base score of 9.9 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from connectwise. Update screenconnect to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
connectwisescreenconnect>= 0, < 26.6.5.9742Affected

References

GitHubgithub.com/ConnectWise-Advisories/Disclosures/tree/main/CVE-2026-84869Refwww.connectwise.com/company/trust/advisoriesRefwww.connectwise.com/company/trust/security-bulletins/2026-09-08-screenconnect-bulletinCISAwww.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-84869Refwww.huntress.com/blog/rogue-screenconnect-installations

How CyberStrike helps

Frequently asked questions

What is CVE-2026-84869?

CVE-2026-84869 is a critical-severity vulnerability affecting connectwise screenconnect. It was published on September 8, 2026 and has a CVSS 3.1 base score of 9.9 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2026-84869?

This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-84869?

Check the references section for vendor advisories and patches from connectwise. Update screenconnect to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-84869?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-84869 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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