CVE-2026-18192 in VIN-DS783E-E6
Summary
by MITRE • 07/29/2026
VIN-DS783E-E6 developed by Vacron has an Arbitrary File Read vulnerability, allowing authenticated remote attackers to exploit Relative Path Traversal to download arbitrary system files.
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Analysis
by VulDB Data Team • 07/29/2026
The VIN-DS783E-E6 device manufactured by Vacron represents a network-based security appliance that suffers from a critical arbitrary file read vulnerability stemming from inadequate input validation mechanisms. This vulnerability exists within the device's web interface authentication system, where proper sanitization of user-supplied file paths is absent, creating a pathway for malicious actors to exploit relative path traversal techniques. The flaw specifically manifests in how the system processes file access requests without adequate restrictions on directory navigation sequences that could allow attackers to ascend directory structures and access files outside of intended boundaries.
Security researchers have identified that authenticated remote attackers can leverage this vulnerability by crafting malicious requests that include directory traversal sequences such as ../ or ..\ in their file path parameters. The device fails to properly validate or sanitize these inputs, allowing the system to interpret user-supplied paths literally and process them without restricting access to sensitive system files. This weakness enables attackers with valid credentials to potentially read configuration files, authentication data, system logs, and other critical information that should remain protected from unauthorized access.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with the capability to gather intelligence about the device's internal structure and potentially identify additional attack vectors. Successful exploitation could lead to privilege escalation opportunities, credential theft, or further network reconnaissance activities. The vulnerability affects not only the immediate device but also potentially impacts network security posture by allowing unauthorized access to system files that may contain sensitive data or configuration parameters. Organizations relying on this equipment for network monitoring or security functions face significant risks as attackers could gain insights into network topology, security policies, and operational procedures through the retrieved files.
Mitigation strategies should include immediate implementation of input validation controls that sanitize all file path parameters before processing user requests. Network administrators must ensure that the device firmware is updated to the latest version provided by Vacron, which should include patches addressing this specific vulnerability. Access controls should be strengthened through mandatory use of strong authentication mechanisms and network segmentation to limit exposure. Additionally, implementing web application firewalls and intrusion detection systems can help monitor for exploitation attempts. Organizations should follow industry standards including cwe-22 for path traversal vulnerabilities and apply mitigations aligned with mitre att&ck framework techniques related to privilege escalation and credential access. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other network infrastructure components, as this vulnerability type remains prevalent across many networked devices and applications.
The vulnerability represents a clear violation of secure coding practices and demonstrates the importance of implementing proper input validation and access control mechanisms. Organizations must recognize that authenticated vulnerabilities can be particularly dangerous as they allow attackers who have already gained some level of access to escalate their privileges and exploit additional weaknesses within the system. This particular flaw underscores the need for comprehensive security testing including penetration testing and code review processes to identify such path traversal vulnerabilities before they can be exploited by malicious actors in real-world scenarios.