CVE DATABASE / CVE-2024-1709
CVE-2024-1709
ConnectWise ScreenConnect Authentication Bypass Vulnerability
CVSS 10 · CRITICAL
⚠ CISA KEV — ACTIVELY EXPLOITED
RANSOMWARE
On the CISA KEV catalog
Confirmed exploited in the wild. Added 2024-02-22.
Federal remediation due 2024-02-29.
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Summary
ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass Using an Alternate Path or Channelvulnerability, which may allow an attacker direct access to confidential information orcritical systems.
CVSS 3.1 breakdown
| Base score | 10 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | CHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
Connectwise screenconnect
Check this CVE live
Use our free CVE Lookup tool for the latest NVD record, or browse the full CISA KEV catalog.
References
- https://github.com/rapid7/metasploit-framework/pull/18870
- https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc
- https://techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/
- https://www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/
- https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8
- https://www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/
- https://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass
- https://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2
- https://www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8
- https://www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-1709
Data: NIST NVD + CISA KEV. NVD last modified 2026-02-26. Always verify against the vendor advisory before acting.