Unpatched ScreenConnect servers open to attack (CVE-2026-3564)
ConnectWise has patched a critical vulnerability (CVE-2026-3564) that could enable attackers to hijack ScreenConnect sessions by abusing ASP.NET machine keys to forge trusted authentication. About CVE-2026-3564 The ScreenConnect remote access platform is popular with managed service providers, IT departments, and technology solution providers. They can opt for the cloud-hosted version or can deploy it on their own servers or in their private cloud. CVE-2026-3564 stems from improper verification of cryptographic signature, can be exploited remotely … More
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