CVE-2026-84869
CRITICAL severity · CVSS 9.9 · Improper privilege management · actively exploited (CISA KEV)
9.9CVSS CRITICAL exploited
Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
Added to KEV 2026-09-11. US federal agencies must patch by 2026-09-14.
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://www.connectwise.com/company/trust/advisoriesAdvisory
- https://www.connectwise.com/company/trust/security-bulletins/2026-09-08-screenconnect-bulletinAdvisory
- https://github.com/ConnectWise-Advisories/Disclosures/tree/main/CVE-2026-84869Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-84869
- https://www.huntress.com/blog/rogue-screenconnect-installationsAdvisory