CVE-2025-34517 is an absolute path traversal vulnerability classified under CWE-22, affecting the Ilevia EVE X1 Server firmware versions up to 4.7.18.0.eden. The vulnerability resides in the get_file_content.php endpoint, which fails to properly restrict pathname inputs, allowing attackers to specify arbitrary file paths outside the intended directory scope. This enables unauthenticated remote attackers to read any file accessible by the server process, potentially exposing sensitive configuration files, credentials, or other critical data. The vulnerability requires no authentication or user interaction, and the attack vector is network-based via port 8080, which the server listens on. Despite the severity, Ilevia has declined to issue a patch or update to remediate this issue, instead recommending customers avoid exposing the vulnerable port to the internet. The CVSS 4.0 vector (AV:N/AC:L/AT:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N) indicates a network attack vector with low complexity, no privileges or user interaction required, and high impact on confidentiality. No public exploits have been reported yet, but the vulnerability presents a significant risk due to the sensitive nature of arbitrary file read capabilities and the lack of vendor remediation. Organizations using this product must rely on compensating controls to mitigate exposure.

For European organizations, this vulnerability poses a critical risk to confidentiality, as attackers can remotely access arbitrary files without authentication. This could lead to exposure of sensitive corporate data, intellectual property, user credentials, or system configuration files, potentially facilitating further attacks or data breaches. The lack of vendor patching increases the risk exposure duration. Organizations in sectors such as manufacturing, critical infrastructure, or government that deploy Ilevia EVE X1 Servers may face operational and reputational damage if exploited. The vulnerability does not directly impact system integrity or availability but can be a stepping stone for more severe attacks. The recommendation to avoid exposing port 8080 externally may be challenging for some deployments, increasing the risk for organizations with internet-facing devices. Additionally, compliance with European data protection regulations (e.g., GDPR) could be jeopardized if sensitive personal data is disclosed due to exploitation.

Since no patch is available, European organizations should implement strict network-level controls to mitigate this vulnerability. This includes blocking or restricting access to port 8080 on firewalls and network perimeter devices, ensuring the EVE X1 Server is not accessible from the internet. Internal network segmentation should be enforced to limit exposure to only trusted systems. Deploy web application firewalls (WAFs) or intrusion prevention systems (IPS) with custom rules to detect and block path traversal attempts targeting get_file_content.php. Regularly audit server logs for suspicious file access patterns indicative of exploitation attempts. If possible, disable or restrict the vulnerable service or replace the affected product with a secure alternative. Organizations should also implement strict access controls and monitor for unauthorized file access on the server. Finally, maintain an incident response plan tailored to handle potential data breaches resulting from this vulnerability.