CVE-2025-34206 is a critical vulnerability affecting Vasion Print Virtual Appliance Host and Application deployments, including both Virtual Appliance (VA) and Software-as-a-Service (SaaS) models. The core issue is an incorrect permission assignment (CWE-732) on critical host configuration and secret files that are mounted into multiple Docker containers under the directory /var/www/efs_storage. These files include sensitive artifacts such as secrets.env, GPG-encrypted blobs stored in .secrets directories, MySQL client keys, and application session files. Due to overly permissive filesystem permissions, any container that an attacker can control or access can read or modify these sensitive files. This exposure enables several severe attack vectors: credential theft, remote code execution (RCE) via manipulation of the Laravel APP_KEY, takeover of Portainer (a popular Docker management UI), and ultimately full system compromise. The vulnerability has a CVSS 4.0 base score of 9.3, indicating critical severity, with network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, and availability. The vulnerability affects all versions of the product, and no patches have been published yet. Although no known exploits are currently reported in the wild, the ease of exploitation and the critical nature of the exposed secrets make this a high-risk issue for any organization using Vasion Print Virtual Appliance Host in containerized environments.

For European organizations, the impact of this vulnerability can be substantial. Vasion Print is used in enterprise print management, often integrated into corporate IT infrastructure. The exposure of secrets and configuration files can lead to unauthorized access to backend databases, application sessions, and encryption keys, resulting in data breaches and loss of confidentiality. The ability to achieve remote code execution and Portainer takeover means attackers can gain persistent, administrative-level control over container orchestration and the host environment. This can lead to lateral movement within networks, disruption of printing services critical for business operations, and potential exfiltration or destruction of sensitive corporate data. Given the criticality of printing infrastructure in sectors such as finance, healthcare, and government, exploitation could also result in regulatory non-compliance and reputational damage. The lack of required authentication or user interaction further increases the risk, as attackers can exploit this vulnerability remotely without user involvement.

Immediate mitigation steps include isolating the affected Docker containers to limit cross-container access and restricting access to the /var/www/efs_storage directory on the host to only trusted containers. Organizations should audit and tighten filesystem permissions to ensure that secrets and configuration files are accessible only to the intended container processes. Employing container security best practices such as using read-only mounts for secrets, leveraging Docker secrets management or external secret stores (e.g., HashiCorp Vault), and minimizing the attack surface by reducing container privileges can help mitigate risk. Network segmentation and strict firewall rules should be applied to limit exposure of container management interfaces like Portainer. Monitoring and alerting for unusual container activity or unauthorized file access can provide early detection of exploitation attempts. Since no patches are currently available, organizations should engage with Vasion for updates and consider temporary compensating controls such as disabling SaaS deployments or migrating to alternative print management solutions if feasible.