CVE-2024-1709: ConnectWise ScreenConnect Authentication Bypass Vulnerability
Reference page built from the source records below, each shown as its source publishes it. Dataset version ref-305695efda42, updated 2026-11-02T23:39:54.475Z.
CISA Known Exploited Vulnerabilities
- Name
- ConnectWise ScreenConnect Authentication Bypass Vulnerability
- Vendor
- ConnectWise
- Product
- ScreenConnect
- Added to the catalog
- 2024-02-22
- Due date for US federal agencies
- 2024-02-29
- Weaknesses
- CWE-288
- Catalog version
- 2026.10.30
ConnectWise ScreenConnect contains an authentication bypass vulnerability that allows an attacker with network access to the management interface to create a new, administrator-level account on affected devices.
Required action (CISA)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Ransomware use: CISA marks this vulnerability as known to be used in ransomware campaigns. CISA does not say which group used it.
Links in CISA's notes
- https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8
- https://nvd.nist.gov/vuln/detail/CVE-2024-1709
Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
NVD analysis
- Status
- Analyzed
- Published
- 2024-02-21T16:15:50.420
- Last modified
- 2026-06-17T07:04:50.557
- Weaknesses
- CWE-288, NVD-CWE-Other
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.
| Metric | Score | Severity | Vector | Scored by |
|---|---|---|---|---|
| CVSS 3.1 | 10 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | 9119a7d8-5eab-497f-8521-727c672e3725 (Secondary) |
| CVSS 3.1 | 10 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | [email protected] (Primary) |
References
- https://github.com/rapid7/metasploit-framework/pull/18870 (Issue Tracking, Patch, Third Party Advisory)
- https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc (Exploit, Third Party Advisory)
- https://techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/ (Press/Media Coverage, Third Party Advisory)
- https://www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/ (Press/Media Coverage, Third Party Advisory)
- https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8 (Vendor Advisory)
- https://www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/ (Third Party Advisory)
- https://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass (Exploit, Third Party Advisory)
- https://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2 (Exploit, Third Party Advisory)
- https://www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8 (Third Party Advisory)
- https://www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/ (Press/Media Coverage, Third Party Advisory)
- https://github.com/rapid7/metasploit-framework/pull/18870 (Issue Tracking, Patch, Third Party Advisory)
- https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc (Exploit, Third Party Advisory)
- https://techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/ (Press/Media Coverage, Third Party Advisory)
- https://www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/ (Press/Media Coverage, Third Party Advisory)
- https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8 (Vendor Advisory)
- https://www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/ (Third Party Advisory)
- https://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass (Exploit, Third Party Advisory)
- https://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2 (Exploit, Third Party Advisory)
- https://www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8 (Third Party Advisory)
- https://www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/ (Press/Media Coverage, Third Party Advisory)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-1709 (US Government Resource)
This product uses the NVD API but is not endorsed or certified by the NVD.
Read on 2026-11-02T23:42:15.686Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2024-1709
CVE record
- Title (CNA)
- Authentication bypass using an alternate path or channel
- Assigner
- cisa-cg
- State
- PUBLISHED
- Published
- 2024-02-21T15:36:03.960Z
- Updated
- 2025-10-21T23:05:24.008Z
- Problem types
- CWE-288 Authentication bypass using an alternate path or channel
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.
References
- https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8
- https://www.huntress.com/blog/vulnerability-reproduced-immediately-patch-screenconnect-23-9-8
- https://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2
- https://www.bleepingcomputer.com/news/security/connectwise-urges-screenconnect-admins-to-patch-critical-rce-flaw/
- https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc
- https://github.com/rapid7/metasploit-framework/pull/18870
- https://www.horizon3.ai/attack-research/red-team/connectwise-screenconnect-auth-bypass-deep-dive/
- https://techcrunch.com/2024/02/21/researchers-warn-high-risk-connectwise-flaw-under-attack-is-embarrassingly-easy-to-exploit/
- https://www.securityweek.com/connectwise-confirms-screenconnect-flaw-under-active-exploitation/
- https://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypass
Read on 2026-11-03T02:05:37.614Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2024/1xxx/CVE-2024-1709.json
Detection rules (SigmaHQ)
SigmaHQ rules whose own tags name this CVE. Each rule page shows the rule as its author published it.
- ScreenConnect User Database Modification (status test, level medium)
- ScreenConnect User Database Modification - Security (status test, level medium)
- CVE-2024-1709 - ScreenConnect Authentication Bypass Exploitation (status test, level critical)
Defensive techniques (MITRE D3FEND)
D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.
CWE-288: Authentication Bypass Using an Alternate Path or Channel
- Harden: Software Update (acts on Software)
- Harden: Variable Initialization (acts on Subroutine)
- Model: Asset Vulnerability Enumeration (acts on Software)
- Harden: Domain Logic Validation (acts on Subroutine)
- Model: Software Inventory (acts on Software)
- Restore: Restore Software (acts on Software)
- Harden: Credential Scrubbing (acts on Subroutine)
- Isolate: Application-based Process Isolation (acts on Subroutine)
- Harden: Trusted Library (acts on Subroutine)
D3FEND ontology version 1.6.0.
Read on 2026-11-02T23:55:45.825Z under licence d3fend-terms-of-use@f98cbc7e from https://d3fend.mitre.org/api/weakness/cwe/CWE-288.json
MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
"The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/
Sources and licences
CISA
Source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30, CC0 1.0. Use of this data does not imply endorsement by CISA or DHS.
National Vulnerability Database (NIST)
This product uses the NVD API but is not endorsed or certified by the NVD.
NVD API Terms of Use (NIST publications in the public domain, 17 U.S.C. 105)
CVE Program, The MITRE Corporation
Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation. CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.
SigmaHQ
"ScreenConnect User Database Modification" by Matt Anderson, Andrew Schwartz, Caleb Stewart, Huntress (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2024/Exploits/CVE-2024-1709/file_event_win_exploit_cve_2024_1709_user_database_modification_screenconnect.yml.
Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-LicenseSigmaHQ
"ScreenConnect User Database Modification - Security" by Matt Anderson, Kris Luzadre, Andrew Schwartz, Huntress (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2024/Exploits/CVE-2024-1709/win_security_exploit_cve_2024_1709_user_database_modification_screenconnect.yml.
Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-LicenseSigmaHQ
"CVE-2024-1709 - ScreenConnect Authentication Bypass Exploitation" by Matt Anderson, Huntress (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2024/Exploits/CVE-2024-1709/web_exploit_cve_2024_1709_screenconnect.yml.
Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-LicenseMITRE D3FEND
MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
"The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/MITRE D3FEND Terms of Use (site + knowledge graph); source repo MIT
Cite this page
Dragons Eye Ransomware Tracker, "CVE-2024-1709: ConnectWise ScreenConnect Authentication Bypass Vulnerability",
entity page, dataset version ref-305695efda42, updated 2026-11-02T23:39:54.475Z,
https://ransomware-tracker.com/cve/CVE-2024-1709 (accessed 2026-11-03).
Underlying source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30.
Underlying source: National Vulnerability Database (NIST), CVE API 2.0, record last modified 2026-06-17T07:04:50.557.
Underlying source: CVE List (CVE Program, The MITRE Corporation), record updated 2025-10-21T23:05:24.008Z.
Underlying source: SigmaHQ rule 1a821580-588b-4323-9422-660f7e131020, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.
Underlying source: SigmaHQ rule 4109cb6a-a4af-438a-9f0c-056abba41c6f, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.
Underlying source: SigmaHQ rule d27eabad-9068-401a-b0d6-9eac744d6e67, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.
Underlying source: MITRE D3FEND, ontology version 1.6.0.
Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.