CVE-2026-32297 in ES3 KVM
Summary
by MITRE • 03/17/2026
The Angeet ES3 KVM allows a remote, unauthenticated attacker to write arbitrary files, including configuration files or system binaries. Modified configuration files or system binaries could allow an attacker to take complete control of a vulnerable system.
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Analysis
by VulDB Data Team • 03/21/2026
The Angeet ES3 KVM vulnerability represents a critical remote code execution flaw that enables unauthenticated attackers to perform arbitrary file writes on affected systems. This vulnerability resides within the KVM (Keyboard, Video, Mouse) switching device manufactured by Angeet, which is commonly deployed in enterprise environments for centralized hardware management and remote access capabilities. The flaw stems from insufficient input validation and inadequate access controls within the device's file handling mechanisms, creating a pathway for malicious actors to inject malicious content into critical system components.
The technical implementation of this vulnerability allows an attacker to manipulate system binaries and configuration files through remote network access without requiring authentication credentials. This represents a fundamental breakdown in the device's security architecture, as the system fails to properly validate file write operations or enforce proper access controls on critical system resources. The vulnerability is particularly concerning because it operates at a low level within the system's file management infrastructure, potentially allowing attackers to modify core system components that govern device behavior and security policies. According to CWE-22, this vulnerability maps directly to improper limitation of a pathname to a restricted directory, commonly referred to as path traversal attacks, where the system fails to properly sanitize file paths during write operations.
The operational impact of this vulnerability extends far beyond simple data manipulation, as it provides attackers with complete system compromise capabilities. Once an attacker successfully writes malicious content to system binaries or configuration files, they can effectively take full control of the device and potentially use it as a foothold for broader network infiltration. This vulnerability can be exploited across various network environments including corporate networks, data centers, and cloud infrastructures where KVM devices are deployed for remote administration. The attack surface is particularly wide given that KVM devices are often exposed to external networks for remote management purposes, making them attractive targets for exploitation.
Security professionals should implement immediate mitigation strategies including network segmentation to isolate KVM devices from untrusted networks, deployment of network monitoring solutions to detect anomalous file write patterns, and implementation of strict access controls for device management interfaces. Organizations must also consider disabling unnecessary remote management features and implementing robust network access controls using firewalls and intrusion detection systems. The vulnerability aligns with ATT&CK technique T1078.004 which covers legitimate credentials, but in this case the attack leverages the device's inherent lack of authentication rather than credential theft. Regular firmware updates and security assessments should be conducted to identify and remediate similar vulnerabilities in the device's file handling mechanisms. The security community should also consider this vulnerability as part of broader supply chain security concerns, particularly when evaluating third-party hardware components for enterprise environments.