CVE-2025-10540 is a vulnerability identified in iMonitor Software Inc.'s iMonitor EAM version 9.63.94. The core issue is the cleartext transmission of sensitive information between the EAM client agent and the EAM server, as well as between the EAM monitor management software and the server. This communication occurs without any form of authentication or encryption, violating secure communication principles and corresponding to CWE-319 (Cleartext Transmission of Sensitive Information). An attacker with network access—such as someone on the same local network or capable of intercepting traffic on routed paths—can eavesdrop on this unencrypted data stream. The exposed data includes highly sensitive information such as user credentials, keylogger data, and personally identifiable information (PII). Beyond passive interception, the attacker can also tamper with the transmitted data, enabling unauthorized modification of information and the ability to issue arbitrary commands to client agents. This elevates the risk from mere data leakage to active compromise of endpoint agents, potentially allowing attackers to manipulate monitored systems or exfiltrate further data. The vulnerability affects a specific version (9.63.94) of the iMonitor EAM product, which is used for endpoint activity monitoring and management. No official patch or fix has been published at the time of disclosure, and no known exploits have been reported in the wild yet. However, the lack of encryption and authentication in communication channels represents a fundamental security flaw that can be exploited by attackers with network access, making it a critical concern for organizations relying on this software for endpoint monitoring and management.

For European organizations, the impact of this vulnerability can be significant. iMonitor EAM is used to monitor endpoint activities, including keylogging and data collection, which often involves handling sensitive employee and customer information. The interception of credentials and PII can lead to identity theft, unauthorized access to corporate resources, and regulatory non-compliance, especially under GDPR requirements. The ability to tamper with data and issue arbitrary commands to client agents could allow attackers to manipulate endpoint monitoring data, disable security controls, or use the compromised agents as footholds for lateral movement within networks. This can result in data breaches, operational disruptions, and loss of trust. Organizations in sectors with strict data protection mandates—such as finance, healthcare, and government—face heightened risks of regulatory penalties and reputational damage. Additionally, the exposure of keylogger data could reveal confidential communications and intellectual property. Since the vulnerability requires network access but no authentication or user interaction, it can be exploited by insiders or external attackers who gain network foothold, increasing the attack surface. The absence of a patch means organizations must rely on compensating controls until a fix is available, prolonging exposure.

Given the lack of an official patch, European organizations should implement immediate compensating controls. First, restrict network access to iMonitor EAM components by segmenting and isolating management and agent communication networks using VLANs or firewall rules to limit exposure to trusted hosts only. Employ network-level encryption such as VPN tunnels or IPsec between client agents and servers to secure traffic externally. Monitor network traffic for unusual patterns or unauthorized command injections targeting EAM agents. Enforce strict access controls and network monitoring on systems running iMonitor EAM to detect lateral movement attempts. Consider temporarily disabling or replacing iMonitor EAM with alternative endpoint monitoring solutions that provide secure communication channels. Conduct thorough audits of systems using this software to identify any signs of compromise. Educate IT and security teams about the vulnerability to increase vigilance. Once a vendor patch is released, prioritize immediate deployment. Additionally, review and enhance overall endpoint security posture, including multi-factor authentication and endpoint detection and response (EDR) tools, to mitigate risks from potential exploitation.