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    CVE-2024-1709

    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.

    Published:Feb 21, 2024
    Last Modified:Feb 26, 2026
    EPS:Feb 21, 2024
    EPSS Score:0.94322
    CVSS Score:10

    CISA Notification

    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.

    Required Action:

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    Feb 29, 2024
    925 days ago
    Alert Date
    Feb 22, 2024
    932 days ago

    Affected Products

    Vendor
    Connectwise
    Product
    Screenconnect

    Exploits

    https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-pochttps://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypasshttps://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2https://github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-pochttps://www.huntress.com/blog/a-catastrophe-for-control-understanding-the-screenconnect-authentication-bypasshttps://www.huntress.com/blog/detection-guidance-for-connectwise-cwe-288-2https://github.com/AhmedMansour93/Event-ID-229-Rule-Name-SOC262-CVE-2024-1709-https://github.com/AMRICHASFUCK/Mass-CVE-2024-1709https://github.com/cjybao/CVE-2024-1709-and-CVE-2024-1708https://github.com/HussainFathy/CVE-2024-1709https://github.com/sxyrxyy/CVE-2024-1709-ConnectWise-ScreenConnect-Authentication-Bypasshttps://github.com/Teexo/ScreenConnect-CVE-2024-1709-Exploithttps://github.com/W01fh4cker/ScreenConnect-AuthBypass-RCE

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-127 Directory Indexing
    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

    CVE-2026-11596 (CVSS 4.7) — In ScreenConnect™ versions prior to 26.2, input validation within the Host Pass creation functionality could a…
    CVE-2026-3564 (CVSS 9) — A condition in the ScreenConnect server component may allow an actor with access to server-level cryptographic…
    CVE-2025-14823 (CVSS 5.3) — In deployments using the ScreenConnect™ Certificate Signing Extension, encrypted configuration values includin…
    CVE-2025-14265 (CVSS 9.1) — In versions of ScreenConnect™ prior to 25.8, server-side validation and integrity checks within the extension …
    CVE-2025-3935 (CVSS 8.1) — ScreenConnect versions 25.2.3 and earlier versions may be susceptible to a ViewState code injection attack. AS…
    CVE-2024-1708 (CVSS 8.4) — ConnectWise ScreenConnect 23.9.7 and prior are affected by path-traversal vulnerability, which may allow an at…
    CVE-2023-47256 (CVSS 5.5) — ConnectWise ScreenConnect through 23.8.4 allows local users to connect to arbitrary relay servers via implicit…
    CVE-2023-47257 (CVSS 8.1) — ConnectWise ScreenConnect through 23.8.4 allows man-in-the-middle attackers to achieve remote code execution v…
    CVE-2022-36781 (CVSS 5.3) — ConnectWise ScreenConnect versions 22.6 and below contained a flaw allowing potential brute force attacks on c…

    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://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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High