CVE-2025-5112 is a buffer overflow vulnerability identified in FreeFloat FTP Server version 1.0, specifically within the MGET command handler component. The vulnerability allows an attacker to remotely send specially crafted MGET commands that overflow a buffer, potentially leading to memory corruption. This can result in arbitrary code execution or denial of service conditions on the affected server. The vulnerability is exploitable without any authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N). The CVSS 4.0 base score is 6.9, categorized as medium severity, reflecting that while the attack is remotely executable and requires no privileges, the impact on confidentiality, integrity, and availability is limited to low levels. The vulnerability has been publicly disclosed, but there are no known exploits currently observed in the wild. The lack of available patches or mitigations from the vendor increases the risk for organizations still running this version of FreeFloat FTP Server. Given the nature of FTP servers as network-facing services, this vulnerability could be leveraged by attackers to gain unauthorized access or disrupt file transfer services.

For European organizations, the impact of this vulnerability depends largely on the deployment of FreeFloat FTP Server 1.0 within their infrastructure. Organizations using this outdated FTP server version may face risks including unauthorized remote code execution, which could lead to data breaches, service disruption, or lateral movement within internal networks. Confidentiality could be compromised if attackers gain control over the server, potentially exposing sensitive files. Integrity and availability of file transfer services could also be affected, disrupting business operations. Since FTP servers often handle critical file exchanges, especially in sectors like manufacturing, finance, and government, exploitation could have operational and reputational consequences. The medium CVSS score suggests that while exploitation is feasible, the overall impact might be contained if compensating controls are in place. However, the absence of patches and public exploit code means organizations must proactively assess and mitigate exposure to prevent future attacks.

1. Immediate identification and inventory of all FreeFloat FTP Server 1.0 instances within the network to assess exposure. 2. If possible, upgrade to a newer, patched version of the FTP server or migrate to a more secure and actively maintained FTP solution. 3. Implement network-level controls such as firewall rules to restrict access to FTP servers only to trusted IP addresses or internal networks. 4. Employ intrusion detection and prevention systems (IDS/IPS) with signatures or anomaly detection tuned to detect suspicious FTP MGET command patterns. 5. Monitor logs for unusual FTP activity, especially anomalous MGET commands or connection attempts from unknown sources. 6. If patching or upgrading is not immediately feasible, consider disabling the MGET command functionality if configurable, or temporarily disabling the FTP service until a secure solution is implemented. 7. Conduct regular vulnerability scans and penetration tests focusing on FTP services to detect exploitation attempts. 8. Educate IT staff about this vulnerability and ensure incident response plans include steps for FTP server compromise scenarios.