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Connectwise Screenconnect: vulnerabilities and CVEs

Connectwise Screenconnect has 11 published vulnerabilities, 5 of them in the last 12 months. 4 are rated critical and 4 are listed by CISA as actively exploited.

CVEs11
Last 12 months5
Critical4
Actively exploited4

All vulnerabilities in the catalogue →⭐ Follow this technology

🔴 Actively exploited (CISA KEV)

CVESeverityEPSSActive exploitationPublishedDescription
CVE-2026-84869Critical (9.9)0.92%⚠ Active exploitationSep 8, 2026
A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not…
CVE-2024-1708High (8.4)95%⚠ Active exploitationFeb 21, 2024
ConnectWise ScreenConnect 23.9.7 and prior are affected by path-traversal vulnerability, which may allow an attacker the ability to execute remote code or directly impact confidential data or critical systems.
CVE-2025-3935High (7.2)3.5%⚠ Active exploitationApr 25, 2025
ScreenConnect versions 25.2.3 and earlier versions may be susceptible to a ViewState code injection attack. ASP.NET Web Forms use ViewState to preserve page and control state, with data encoded using Base64 protected by…
CVE-2024-1709Critical (10)100%⚠ Active exploitationFeb 21, 2024
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…

Latest vulnerabilities

CVESeverityEPSSActive exploitationPublishedDescription
CVE-2026-84869Critical (9.9)0.92%⚠ Active exploitationSep 8, 2026
A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not…
CVE-2026-11596Medium (4.7)0.24%—Jun 10, 2026
In ScreenConnect™ versions prior to 26.2, input validation within the Host Pass creation functionality could allow an authenticated user with Host Pass creation privileges the ability to specify a token expiration…
CVE-2026-3564Critical (9)0.28%—Mar 17, 2026
A condition in the ScreenConnect server component may allow an actor with access to server-level cryptographic material used for authentication to obtain unauthorized access, including elevated privileges, in certain…
CVE-2025-14823Medium (5.3)0.15%—Dec 18, 2025
In deployments using the ScreenConnect™ Certificate Signing Extension, encrypted configuration values including an Azure Key Vault-related key, could be returned to unauthenticated users through a client-facing endpoint…
CVE-2025-14265Critical (9.1)0.37%—Dec 11, 2025
In versions of ScreenConnect™ prior to 25.8, server-side validation and integrity checks within the extension subsystem could allow the installation and execution of untrusted or arbitrary extensions by authorized or…
CVE-2025-3935High (7.2)3.5%⚠ Active exploitationApr 25, 2025
ScreenConnect versions 25.2.3 and earlier versions may be susceptible to a ViewState code injection attack. ASP.NET Web Forms use ViewState to preserve page and control state, with data encoded using Base64 protected by…
CVE-2024-1709Critical (10)100%⚠ Active exploitationFeb 21, 2024
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…
CVE-2024-1708High (8.4)95%⚠ Active exploitationFeb 21, 2024
ConnectWise ScreenConnect 23.9.7 and prior are affected by path-traversal vulnerability, which may allow an attacker the ability to execute remote code or directly impact confidential data or critical systems.
CVE-2023-47257High (8.1)1.0%—Feb 1, 2024
ConnectWise ScreenConnect through 23.8.4 allows man-in-the-middle attackers to achieve remote code execution via crafted messages.
CVE-2023-47256Medium (5.5)0.45%—Feb 1, 2024
ConnectWise ScreenConnect through 23.8.4 allows local users to connect to arbitrary relay servers via implicit trust of proxy settings
CVE-2022-36781Medium (5.3)0.62%—Sep 28, 2022
ConnectWise ScreenConnect versions 22.6 and below contained a flaw allowing potential brute force attacks on custom access tokens due to inadequate rate-limiting controls in the default configuration. Attackers could…

🎯 How it gets exploited (ATT&CK techniques)

  1. T1059 Command and Scripting Interpreter2
  2. T1210 Exploitation of Remote Services2
  3. T1059.003 Windows Command Shell1
  4. T1078 Valid Accounts1
  5. T1190 Exploit Public-Facing Application1
  6. T1203 Exploitation for Client Execution1

Number of CVEs of this technology mapped to each exploitation or primary-impact technique.

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