External risk intelligence

ConnectWise Automate Component Authenticity Risk.

CVE advisorySeverity: HIGH (CVSS 8.8)

CVE-2026-9089

ConnectWise Automate™ Agent component authenticity may not be fully verified, potentially allowing unauthorized modifications. This could impact affected systems and data. Organizations should update to a version that addresses this vulnerability to mitigate business risk.

2Halo Surface Signal

Connectwise Automate

before 2026.5

External exposure likelihood

Halo Surface Signal score for CVE-2026-9089

ConnectWise Automate agents are typically deployed on managed endpoints within internal networks, communicating with a central management server. While these agents reside on endpoints, they are generally not public-facing services accessible from the open internet, as they require authenticated, controlled communication channels to the management platform.

Horizon Alert

Summary of the vulnerability and why it matters

ConnectWise Automate™ Agent components may not fully verify the authenticity of their loaded components. This vulnerability could allow unauthorized modifications to the agent's functionality.

  • Vulnerable ConnectWise Automate Agent
  • Insecure component authentication
  • Potential for data compromise and system control

Attack Path

How an attacker could exploit the issue

An attacker could exploit a vulnerability in ConnectWise Automate™ by manipulating component authenticity during plugin loading or self-update processes. This could allow an attacker to gain unauthorized access and potentially execute malicious code. The impact could affect systems, data, and overall business operations.

  • Components are not fully verified.
  • Attacker gains access.
  • Compromised components lead to control.

Live Threat

Current exploitation, exposure, and threat context

The ConnectWise Automate Agent's inability to fully verify component authenticity during plugin loading and self-updates presents a significant security vulnerability. Attackers could potentially exploit this weakness to gain unauthorized access and compromise system integrity. Organizations utilizing affected versions of ConnectWise Automate should consider prompt action to mitigate this risk.

  • Attackers likely need advanced skills.
  • Requires adjacent network access and no privileges.
  • Poses a high business risk, demanding urgent attention.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

An organization using ConnectWise Automate should address a vulnerability related to component authenticity during plugin loading and self-update operations. This vulnerability could potentially allow attackers to compromise systems. The recommended action is to update to a version that resolves this issue.

  • Identify affected ConnectWise Automate assets.
  • Update to the vendor-provided fix.
  • Verify the fix and monitor for related activity.

Frequently asked questions

What is ConnectWise Automate and what is it used for?

ConnectWise Automate is a remote monitoring and management (RMM) software designed for IT service providers. It allows them to remotely manage and monitor client endpoints, automate IT tasks, and provide support services to their customers.

What kind of weakness does CVE-2026-9089 describe?

CVE-2026-9089 describes a weakness classified as CWE-494, which relates to code without integrity checks. In ConnectWise Automate, this means the agent does not fully verify the authenticity of components it loads or receives during updates.

How can an attacker exploit this ConnectWise Automate vulnerability?

An attacker can exploit this vulnerability by manipulating the authenticity of components during the plugin loading or self-update processes. The vulnerability is not triggered if the attacker has no privileges and is not on an adjacent network.

Who should be concerned about CVE-2026-9089 based on its access pattern?

Organizations that use ConnectWise Automate should be concerned, as this vulnerability is classified as internal. This means an attacker would likely need access to an internal network segment to exploit it, rather than direct access from the public internet.

What is the first step for managing this ConnectWise Automate risk?

The first step is to identify all assets running affected versions of ConnectWise Automate. Subsequently, updating the software to the vendor-provided version that resolves this issue is recommended.

References