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CVE-2024-1709
Authentication bypass using an alternate path or channel
Critical10.0Known exploitedEPSS 100.0%
- Published
- Updated
- Reserved
- Assigned by
- cisa-cg
Description
ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass Using an Alternate Path or Channel vulnerability, which may allow an attacker direct access to confidential information or critical systems.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as ConnectWise ScreenConnect Authentication Bypass Vulnerability.
- Added
- 22 Feb 2024
- Fix due (US federal)
- 29 Feb 2024
- Used by ransomware
- Known
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| cisa-cgCNA (assigner) | 3.1 | Critical10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | Critical10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 100.0% · top 0.1% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: yes · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 10.0.
Weakness
Affected products
- affected ≤ 23.9.7
References (11)
- https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8 (opens in a new tab)x_transferred
- https://www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8 (opens in a new tab)x_transferred
- https://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2 (opens in a new tab)x_transferred
- https://www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/ (opens in a new tab)x_transferred
- https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc (opens in a new tab)x_transferred
- https://github.com/rapid7/metasploit-framework/pull/18870 (opens in a new tab)x_transferred
- https://www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/ (opens in a new tab)x_transferred
- https://techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/ (opens in a new tab)x_transferred
- https://www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/ (opens in a new tab)x_transferred
- https://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass (opens in a new tab)x_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-1709 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2024-1709)Record last updated .