CVE-2026-84869
ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability
IN CISA 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.
- Vendor
- ConnectWise
- Product
- ScreenConnect
- CVSS 3.1
- 9.9 (critical), scored by 7d616e1a-3288-43b1-a0dd-0a65d3e70a49CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Published
- 2026-09-08
- NVD modified
- 2026-09-12
- NVD status
- Analyzed
CISA KEV
- Date added
- 2026-09-11
- Due date
- 2026-09-14
- Ransomware use
- Unknown
- Required action
- Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
EPSS
0.92% chance of exploitation in the next 30 days (percentile 59th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
References
- github.com (Third Party Advisory)
- www.connectwise.com (Vendor Advisory)
- www.connectwise.com (Vendor Advisory)
- www.cisa.gov (US Government Resource)
- www.huntress.com (Third Party Advisory)
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.