Not analysed yet
We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 10.0 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | CNA (cisa-cg) |
- CISA KEV Listed since 22 Feb 2024: known to be exploited. CISA reports use in ransomware campaigns.
- EPSS 1.00, the 99th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
Sources
References from the CNA
- www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8
- www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8
- www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2
- www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/
- github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc
- github.com/rapid7/metasploit-framework/pull/18870
- www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/
- techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/
- www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/
- www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass