CVE-2026-84869
ScreenConnect Client: Guest-to-Host File Execution via File-Transfer Actions
- State
- Published
- Severity
- 9.9 Critical
- Published
- Sep 8, 2026
- Updated
- Sep 12, 2026
- Reserved
- Sep 2, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.9 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | ConnectWise |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
ScreenConnectConnectWise |
|
References
- https://www.connectwise.com/company/trust/security-bulletins/2026-09-08-screenconnect-bulletin
- https://github.com/ConnectWise-Advisories/Disclosures/tree/main/CVE-2026-84869
- https://www.connectwise.com/company/trust/advisories
- https://www.huntress.com/blog/rogue-screenconnect-installationsthird-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-84869government-resource
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