CVE-2024-1709
10, critical Known exploited Used in ransomwareConnectWise ScreenConnect Authentication Bypass Vulnerability
- CVSS
- 10, critical critical CVSS v3.1
- EPSS, next 30 days
- 100% higher than 99.9% of scored CVEs
- Exploitation
- Confirmed in the wild
- Published
- 21 Feb 20242 years ago
Known exploited
CISA added this to the Known Exploited Vulnerabilities Catalog on 22 Feb 2024 and links it to ransomware activity. US federal agencies had to remediate by 29 Feb 2024, a deadline that has passed.
Required action. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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.
Details
- Vendor
- ConnectWise
- Product
- ScreenConnect
- Weakness
- CWE-288 (opens in a new tab)
- Status
- Analyzed
- Updated
- 17 Jun 2026
- Assigner
- 9119a7d8-5eab-497f-8521-727c672e3725
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References 11
Exploit code 3
- github.com /watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc (opens in a new tab)
- huntress.com /blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass (opens in a new tab)
- huntress.com /blog/detection-guidance-for-connectwise-cwe-288-2 (opens in a new tab)
Patches and fixes 3
Advisories 4
- techcrunch.com /2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/ (opens in a new tab)
- connectwise.com /company/trust/security-bulletins/connectwise-screenconnect-23.9.8 (opens in a new tab)
- horizon3.ai /attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/ (opens in a new tab)
- securityweek.com /connectwise-confirms-screenconnect-flaw-under-active-exploitation/ (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Other ConnectWise CVEs
Every ConnectWise CVE we holdSame vendor in what we hold, not a known link between the flaws.
- CVE-2026-84869 ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability KEV EPSS 0.9% 9.9, critical
- CVE-2025-3935 ConnectWise ScreenConnect Improper Authentication Vulnerability KEV EPSS 4% 7.2, high
- CVE-2024-1708 ConnectWise ScreenConnect Path Traversal Vulnerability KEV EPSS 95% 8.4, high
Beyond this page
Is CVE-2024-1709 in your network?
This page tells you how dangerous CVE-2024-1709 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.
CVE-2024-1709 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.
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EXYS7600 OCELOT
Find it before attackers do
Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2024-1709 comes with the devices to patch.
Learn more about EXYS7600 OCELOT -
EXYS7950 KONDRA
Detect it if it's exploited
Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.
Learn more about EXYS7950 KONDRA
Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.