CVE-2026-19909 in Q80
Summary
by MITRE • 08/14/2026
PAX Technology Q80 AIP File Parsing Link Following Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of PAX Technology Q80. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the parsing of AIP files. By creating a symbolic link, an attacker can abuse the installer process to write arbitrary files. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-30583.
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Analysis
by VulDB Data Team • 08/14/2026
The PAX Technology Q80 AIP File Parsing Link Following Remote Code Execution Vulnerability represents a critical security flaw that enables remote attackers to gain unauthorized execution privileges on affected devices without requiring authentication. This vulnerability specifically targets the installer process responsible for handling AIP files, which are used for device configuration and software deployment within the PAX Q80 platform. The flaw exists in how the system processes symbolic links during file parsing operations, creating an exploitable condition that can be leveraged by malicious actors to execute arbitrary code with elevated privileges.
The technical implementation of this vulnerability stems from improper handling of symbolic link resolution within the AIP file parsing mechanism. When the installer encounters certain AIP files containing malicious symbolic links, it follows these links during the installation process and writes arbitrary files to predetermined locations on the filesystem. This behavior violates fundamental security principles regarding file access controls and privilege escalation, as the installer process operates with elevated permissions typically reserved for system-level operations. The vulnerability's exploitation requires only network adjacency, meaning attackers do not need to be physically present or have direct access to the target device, making it particularly dangerous in environments where devices are connected to untrusted networks.
The operational impact of this vulnerability extends beyond simple code execution to encompass full system compromise capabilities. An attacker who successfully exploits this vulnerability can execute arbitrary code with root privileges, effectively gaining complete control over the affected device. This level of access enables malicious actors to modify system configurations, install backdoors, exfiltrate sensitive data, or establish persistent access points within the network environment. The vulnerability's classification aligns with CWE-59 and CWE-20 categories, which address improper link following in file operations and input validation issues respectively, both of which fall under the broader ATT&CK framework domain of privilege escalation and execution.
Security mitigations for this vulnerability should focus on implementing proper symbolic link validation and access control measures within the installer process. Organizations should immediately apply vendor-provided patches or firmware updates to address the underlying parsing flaw in AIP file handling. Network segmentation strategies can help reduce the attack surface by limiting network adjacency to only trusted devices and networks. Additional protective measures include implementing strict file permissions, monitoring for unusual file creation patterns, and conducting regular security audits of device installation processes. The vulnerability's exposure also underscores the importance of secure coding practices and input validation techniques that prevent unauthorized access to system resources, particularly in embedded systems where privilege escalation opportunities are limited but highly impactful when exploited.