CVE-2025-10225 is a vulnerability classified under CWE-119, indicating improper restriction of operations within the bounds of a memory buffer. It affects the OpenSSL-based session module in AxxonSoft AxxonOne C-Werk version 2.0.6 and earlier running on Windows platforms. The flaw manifests under high load conditions when the system handles expired session keys, causing memory reallocation errors. These errors can be exploited remotely by an attacker without any authentication or user interaction to induce application crashes or unpredictable behavior, effectively resulting in a denial-of-service (DoS) condition. The vulnerability leverages the mishandling of memory buffers during session key expiration processes, which is critical in maintaining session integrity and stability. The CVSS v3.1 base score is 7.5, reflecting a high severity primarily due to the network attack vector, low attack complexity, and the significant impact on availability. Although no exploits are currently known in the wild and no patches have been released, the vulnerability poses a serious risk to systems relying on AxxonOne C-Werk for security and surveillance operations. The lack of confidentiality or integrity impact confines the threat to availability disruption, but given the critical nature of video surveillance systems, this can have substantial operational consequences.

For European organizations, the primary impact is denial of service, which can disrupt security monitoring and surveillance operations dependent on AxxonOne C-Werk. This disruption could lead to gaps in physical security coverage, delayed incident response, and potential safety risks in critical infrastructure sectors such as transportation, energy, and public safety. Organizations in sectors with stringent regulatory compliance requirements for security and availability may face operational and legal repercussions if service interruptions occur. The vulnerability's ease of exploitation without authentication increases the risk of targeted attacks by threat actors aiming to cause operational disruption. Additionally, unpredictable application behavior could complicate incident management and recovery efforts. The impact is particularly significant for large-scale deployments or environments experiencing high session loads, where triggering the vulnerability is more feasible. European entities relying on integrated security solutions from AxxonSoft must consider this vulnerability a critical availability risk that could affect business continuity and safety.

1. Immediately restrict network exposure of the AxxonOne C-Werk session module by implementing firewall rules to limit access only to trusted internal networks and known management stations. 2. Deploy rate limiting and traffic shaping controls to prevent high load conditions that trigger the vulnerability, especially on session handling components. 3. Monitor application logs and system behavior for signs of memory reallocation errors, crashes, or abnormal session key handling events to detect potential exploitation attempts early. 4. Engage with AxxonSoft support channels to obtain information on patches or updates addressing this vulnerability and plan timely deployment once available. 5. Consider deploying intrusion detection/prevention systems (IDS/IPS) with custom signatures to identify anomalous traffic patterns targeting session management. 6. Implement redundancy and failover mechanisms for critical surveillance systems to maintain availability during potential service disruptions. 7. Conduct internal security assessments and penetration tests simulating high load scenarios to evaluate system resilience and validate mitigation effectiveness. 8. Educate security operations teams about this vulnerability to enhance incident response preparedness.