CVE-2025-10035 is a critical vulnerability identified in Fortra's GoAnywhere Managed File Transfer (MFT) product, specifically within the License Servlet component. The flaw arises from improper deserialization of objects when processing license response signatures. An attacker capable of forging a valid license response signature can supply a maliciously crafted serialized object, which the License Servlet will deserialize without adequate validation. This leads to CWE-502 (Deserialization of Untrusted Data) and CWE-77 (Command Injection) vulnerabilities. The deserialization process allows execution of arbitrary code or commands on the underlying system, effectively enabling remote code execution without requiring authentication or user interaction. The vulnerability affects all versions of GoAnywhere MFT, as indicated by the affectedVersions field marked '0' (likely meaning all versions up to the disclosure date). The CVSS v3.1 base score is 10.0, reflecting network attack vector, no privileges required, no user interaction, and complete impact on confidentiality, integrity, and availability with scope change. Although no known exploits are currently reported in the wild, the vulnerability's nature and critical severity make it a prime target for attackers. The License Servlet is a critical component responsible for license validation, and compromise here can lead to full system takeover, data exfiltration, or disruption of managed file transfer operations. Given the widespread use of GoAnywhere MFT in enterprise environments for secure file transfers, this vulnerability poses a significant risk to organizations relying on this software for sensitive data movement.

The impact of CVE-2025-10035 on European organizations is severe. Exploitation allows attackers to execute arbitrary commands remotely, leading to full system compromise. This can result in unauthorized data access, data manipulation, or destruction, severely impacting confidentiality, integrity, and availability of critical managed file transfer services. Disruption of file transfer operations can affect business continuity, especially for sectors like finance, healthcare, government, and manufacturing that rely heavily on secure and reliable data exchange. The vulnerability's exploitation could also serve as a foothold for lateral movement within networks, enabling further compromise of sensitive systems. European organizations face heightened risk due to stringent data protection regulations such as GDPR, where breaches involving personal data can lead to substantial fines and reputational damage. Additionally, the critical nature of this vulnerability may attract advanced persistent threat (APT) groups targeting European critical infrastructure and enterprises. The lack of required authentication and user interaction lowers the barrier for exploitation, increasing the likelihood of attacks. Consequently, the threat could lead to significant operational disruption, financial losses, and regulatory consequences across Europe.

To mitigate CVE-2025-10035, European organizations should implement the following specific measures: 1) Apply security patches or updates from Fortra immediately once available, as the vulnerability resides in the License Servlet component. 2) Until patches are released, restrict network access to the License Servlet interface using firewalls or network segmentation to limit exposure to trusted management networks only. 3) Implement strict monitoring and logging of license validation requests to detect anomalous or forged license responses indicative of exploitation attempts. 4) Employ application-layer filtering or web application firewalls (WAFs) to detect and block suspicious serialized payloads targeting the License Servlet. 5) Conduct thorough security assessments and penetration testing focused on deserialization vulnerabilities within GoAnywhere MFT deployments. 6) Educate IT and security teams about the risks of deserialization flaws and the importance of validating serialized data from untrusted sources. 7) Consider deploying runtime application self-protection (RASP) or endpoint detection and response (EDR) solutions capable of detecting command injection or unusual process executions. 8) Review and tighten access controls and credentials related to GoAnywhere MFT administration to prevent unauthorized configuration changes. These targeted actions go beyond generic advice by focusing on the vulnerability's specific attack vector and the critical License Servlet component.