CVE-2026-3564

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

March 18, 2026

Last Seen

September 7, 2026

API

Exploited in Wild

—

Ransomware Use

—

Public Exploits

—

Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Critical Vulnerability in ConnectWise ScreenConnect Allows Unauthorized Access74.6

ConnectWise has released a patch for its ScreenConnect remote support tool to address a critical vulnerability, tracked as CVE-2026-3564, that could allow unauthorized access and privilege escalation. This flaw affects all versions prior to 26.1 and involves the extraction of server-level cryptograp...

New ScreenConnect Flaw Enables Malware Spread via Rogue Clients74.0

ConnectWise has identified a critical vulnerability in ScreenConnect Remote Access affecting both cloud and on-premises deployments. The flaw, which impacts file transfer functionality, allows attackers to deploy rogue ScreenConnect clients that spread malware to connected systems. This malware is p...