ScreenConnect Client: Guest-to-Host File Execution via File-Transfer Actions
Priority CRITICAL 100Exploited in the wildCWE-269Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation, Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269 and CWE-862.
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.
Why it matters now
Exploitation Active In CISA KEV since 2026-09-11CISA due date 2026-09-14
EPSS 0.00924 60th percentileScored 2026-11-07
Fix Fixed ScreenConnect (ConnectWise): 26.6.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ConnectWise | ScreenConnect | before 26.6.5 | 26.6.5 | Patch available | CNA |
- ScreenConnect VendorConnectWise Affected before 26.6.5 Fixed in 26.6.5 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:connectwise:screenconnect:*:*:*:*:*:*:*:* | before 26.6.5.9742 | Vulnerable | ConnectWise |
- cpe:2.3:a:connectwise:screenconnect:*:*:*:*:*:*:*:* Versions before 26.6.5.9742 Vulnerable ·ConnectWise
Remediation
- Fix · CNA ScreenConnect (ConnectWise) Fixed in 26.6.5
Timeline
- 2026-09-11 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2026-84869
- 2026-10-03 Alias added: GHSA-rc8v-f46m-jcgm
References
More ConnectWise Screenconnect vulnerabilities
- TI-2024-01589 Authentication bypass using an alternate path or channel KEVCVSS 3.1CRITICAL 10.0
- TI-2024-01588 Improper limitation of a pathname to a restricted directory (“path traversal”) KEVCVSS 3.1HIGH 8.4
- TI-2025-03479 ScreenConnect Exposure to ASP.NET ViewState Code Injection KEVCVSS 3.1HIGH 8.1
- TI-2025-13036 Improper server-side validation in ScreenConnect extension framework CVSS 3.1CRITICAL 9.1
- TI-2023-25574 ConnectWise ScreenConnect through 23.8.4 allows man-in-the-middle attackers to achieve… CVSS 3.1HIGH 8.1
- TI-2025-13525 Certificate Signing Extension Returns Encrypted Values CVSS 3.1MEDIUM 5.3
Sources
- CVE-2026-84869 · CVE Program
- CVE-2026-84869 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-rc8v-f46m-jcgm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences