CVE-2025-34198 is a critical security vulnerability affecting Vasion Print Virtual Appliance Host versions prior to 22.0.951 and Application versions prior to 20.0.2368, including both virtual appliance (VA) and SaaS deployments. The root cause is the presence of shared, hardcoded SSH host private keys (RSA, ECDSA, and ED25519) embedded within the appliance image. Instead of generating unique SSH host keys per installation, all appliances ship with identical private keys. This design flaw allows an attacker who obtains the private keys—potentially from one compromised appliance image or installation—to impersonate any other appliance using the same keys. The attacker can decrypt or intercept SSH connections to these appliances, enabling man-in-the-middle (MitM) attacks or direct impersonation of the appliance during administrative SSH sessions. Because the vulnerability requires no authentication or user interaction and can be exploited remotely over the network, it poses a severe threat to confidentiality and integrity of administrative communications. The CVSS 4.0 base score of 9.3 reflects the critical severity, with network attack vector, low attack complexity, and no privileges or user interaction required. Although no known exploits are currently reported in the wild, the vulnerability's nature makes it highly exploitable once the keys are obtained. The vendor has identified this issue as V-2024-011 and it is categorized under CWE-798 (Use of Hard-coded Credentials). The lack of unique SSH keys undermines the trust model of SSH host authentication, potentially allowing attackers to intercept sensitive administrative commands, credentials, or configuration data. This vulnerability affects all versions prior to the specified patched releases, impacting organizations relying on Vasion Print for centralized print management.

For European organizations, the impact of CVE-2025-34198 is significant. Vasion Print is used in enterprise environments to manage print infrastructure centrally, often integrated into broader IT and security management frameworks. Exploitation of this vulnerability can lead to unauthorized access to administrative interfaces, interception of sensitive data, and potential lateral movement within networks. Confidentiality of administrative SSH sessions is compromised, risking exposure of credentials and configuration details. Integrity is also at risk, as attackers can impersonate appliances to inject malicious configurations or disrupt print services. Availability could be indirectly affected if attackers manipulate appliance settings or disrupt administrative access. Organizations in sectors with stringent data protection requirements, such as finance, healthcare, and government, face heightened risks due to potential data breaches and compliance violations. The vulnerability's ease of exploitation and lack of required authentication increase the urgency for mitigation. Additionally, the shared nature of the keys means a single compromised appliance or image can jeopardize multiple deployments across different organizations, amplifying the threat landscape in Europe.

1. Immediate application of vendor patches and updates once available for Vasion Print Virtual Appliance Host (version 22.0.951 and later) and Application (version 20.0.2368 and later) to ensure unique SSH host keys are generated per appliance. 2. Until patches are applied, isolate Vasion Print appliances within segmented network zones with strict access controls to limit exposure of SSH services to trusted administrators only. 3. Implement network monitoring and intrusion detection systems to detect unusual SSH traffic patterns or man-in-the-middle attack indicators targeting print appliances. 4. Regularly audit and verify SSH host keys on appliances to detect unauthorized key reuse or anomalies. 5. Enforce multi-factor authentication (MFA) on administrative access points to add an additional security layer beyond SSH key authentication. 6. Maintain secure backups of appliance configurations and monitor for unauthorized changes. 7. Educate IT and security teams about the risks of hardcoded credentials and the importance of unique cryptographic key generation in appliance deployments. 8. Consider deploying compensating controls such as VPN tunnels or SSH bastion hosts to further protect administrative SSH sessions until patches are fully deployed.