CVE-2026-59107 in Cynap Pro
Summary
by MITRE • 10/26/2026
A security vulnerability has been identified in the vSolution Matrix file sharing feature. A shared cryptographic trust configuration could allow an attacker who obtains the matching private key to authenticate to an affected device via SSH as root. This vulnerability affects only devices configured as a vSolution Matrix main/master station with the file sharing feature enabled.
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Analysis
by VulDB Data Team • 10/26/2026
The identified security flaw resides within the vSolution Matrix application, specifically affecting its file sharing functionality when deployed in a master or main station configuration. The core of this vulnerability lies in the cryptographic trust mechanism used for authentication. In secure systems, private keys are intended to remain strictly confidential and stored securely on the host device. However, due to improper key management practices within this specific feature implementation, an attacker who successfully obtains the matching private key can bypass standard access controls. This misconfiguration effectively undermines the integrity of the SSH authentication process, allowing unauthorized entities to establish a privileged session as the root user without needing valid credentials or exploiting additional software bugs in the SSH daemon itself.
From a technical perspective, this issue represents a critical failure in identity and access management principles. The vulnerability allows for remote code execution with the highest level of privilege available on the system. Once an attacker authenticates via SSH using the compromised private key, they gain full control over the underlying operating system. This enables them to modify system configurations, install persistent backdoors, exfiltrate sensitive data stored within the file sharing directories, or pivot further into other network segments connected to this device. The impact is severe because root access provides unrestricted read and write capabilities across all files and processes on the host machine.
This vulnerability aligns with CWE-321, which describes the use of a single key for multiple cryptographic purposes, often leading to trust issues when one part of that usage is compromised. Furthermore, in terms of offensive security tactics, this scenario maps directly to MITRE ATT&CK technique T1078, Valid Accounts, specifically involving local accounts with administrative privileges. The attacker leverages stolen credentials or keys to maintain persistence and escalate privileges without triggering typical intrusion detection alerts associated with brute-force attacks or exploit code execution.
Mitigation strategies must focus on immediate remediation of the cryptographic configuration. Administrators should immediately rotate all SSH keys associated with the vSolution Matrix file sharing feature, ensuring that new private keys are generated using strong algorithms such as Ed25519 or RSA-4096 and stored in secure, restricted directories with appropriate file permissions like 600. It is critical to disable the file sharing feature if it is not strictly required for business operations, thereby reducing the attack surface. Additionally, implementing multi-factor authentication for SSH access can provide a secondary layer of defense even if private keys are compromised. Regular audits of key usage and monitoring for anomalous login attempts from unexpected IP addresses will help in early detection of potential exploitation activities.