CVE-2026-44879 in EdgeConnect SD-WAN Gateway
Summary
by MITRE • 07/22/2026
A vulnerability in the command line interface of ECOS devices could allow a highly privileged, authenticated remote attacker to perform command injection on certain CLI commands. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system.
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Analysis
by VulDB Data Team • 07/22/2026
This vulnerability represents a critical command injection flaw within the command line interface of ECOS devices that fundamentally undermines the security posture of affected systems. The flaw exists in the parsing and handling of CLI commands, where insufficient input validation allows maliciously crafted payloads to be executed with elevated privileges. Attackers who have already established authentication credentials can exploit this weakness to bypass normal operational boundaries and execute arbitrary code on the underlying operating system. Such vulnerabilities typically arise from improper sanitization of user inputs before they are processed by system commands, creating an attack surface where legitimate administrative functions become vectors for unauthorized access.
The technical implementation of this vulnerability aligns with common command injection patterns found in industrial control systems and network infrastructure devices. When CLI commands are constructed using user-supplied input without proper escaping or filtering mechanisms, attackers can inject malicious commands that get interpreted by the shell or underlying system processor. This type of flaw falls under the CWE-77 category for command injection, which is a well-documented weakness in software development practices where external input is directly incorporated into command execution contexts. The privilege escalation aspect indicates that while initial access may require authentication, the vulnerability allows attackers to operate with elevated privileges beyond what would normally be expected from authenticated sessions.
Operationally, this vulnerability presents severe implications for organizations relying on ECOS devices for critical infrastructure operations. Remote exploitation capabilities mean that attackers can target these systems from outside the network perimeter without requiring physical access or additional attack vectors. The ability to execute arbitrary commands on the underlying operating system provides attackers with complete control over device functions, potentially enabling data exfiltration, system modification, denial of service conditions, or even lateral movement within the network. This vulnerability directly impacts the CIA triad by compromising confidentiality through potential data access, integrity through possible system modification, and availability through service disruption.
Organizations should implement immediate mitigation strategies including input validation and sanitization measures at all CLI interfaces, restricting command execution privileges to minimum necessary levels, and deploying network segmentation to limit lateral movement capabilities. The implementation of proper command line argument escaping and the use of secure coding practices that prevent direct concatenation of user input into system commands represents fundamental defensive measures. Additionally, regular security assessments should be conducted to identify similar vulnerabilities in other device interfaces, as this type of flaw often indicates broader architectural weaknesses in how external inputs are handled across the system. Organizations should also consider implementing network monitoring solutions that can detect anomalous command execution patterns and establish incident response procedures specifically addressing remote code execution vulnerabilities in industrial control systems.