CVE-2025-49851 is an Improper Authentication vulnerability (CWE-287) found in ControlID's iDSecure On-premises product, specifically in versions 4.7.48.0 and earlier. This vulnerability allows an unauthenticated attacker to bypass the authentication mechanisms of the system, thereby gaining unauthorized permissions within the product. The vulnerability is remotely exploitable over the network without requiring any user interaction or prior authentication, as indicated by the CVSS vector (AV:N/AC:L/AT:N/UI:N/PR:N). The impact on confidentiality is high, as the attacker can gain access to sensitive information or control functions within the system. Integrity and availability impacts are not indicated, suggesting the primary risk is unauthorized access rather than data modification or service disruption. The vulnerability affects on-premises deployments of iDSecure, a product likely used for access control or security management in physical or logical environments. No public exploits have been reported yet, but the high CVSS score of 8.7 reflects the critical nature of the authentication bypass and the ease with which it can be exploited remotely without credentials or user interaction. The lack of available patches at the time of publication increases the urgency for mitigation and monitoring. Given the nature of the product, exploitation could lead to unauthorized access to secure facilities or systems managed by iDSecure, potentially compromising physical security or sensitive operational environments.

For European organizations, the impact of this vulnerability could be significant, especially for those relying on ControlID iDSecure On-premises for physical access control or security management. Unauthorized access could lead to breaches of secure areas, exposure of sensitive operational data, or manipulation of security policies. Critical infrastructure sectors such as manufacturing, transportation, healthcare, and government facilities that use this product could face increased risk of espionage, sabotage, or data theft. The vulnerability’s ease of exploitation without authentication means attackers can quickly escalate privileges and move laterally within affected environments. This could undermine trust in physical security systems and lead to regulatory compliance issues under GDPR and other European data protection laws if personal or sensitive data is exposed. Additionally, the lack of public exploits currently does not preclude rapid weaponization, so organizations must act proactively. The potential for cascading effects in integrated security environments further elevates the risk profile for European enterprises.

1. Immediate mitigation should include network segmentation to isolate iDSecure On-premises servers from untrusted networks, limiting exposure to potential attackers. 2. Implement strict firewall rules to restrict access to the management interfaces of iDSecure systems only to trusted administrative hosts and networks. 3. Monitor network traffic and system logs for unusual authentication bypass attempts or unauthorized access patterns, employing anomaly detection tools tailored to access control systems. 4. Engage with ControlID support channels to obtain any available patches or workarounds as soon as they are released, and prioritize patch deployment. 5. Consider deploying multi-factor authentication (MFA) at the network or application gateway level to add an additional layer of verification beyond the vulnerable product’s native authentication. 6. Conduct a thorough audit of all user permissions and access policies within iDSecure to minimize privileges and remove unnecessary accounts. 7. Develop and test incident response plans specific to physical security breaches that could result from this vulnerability. 8. For organizations with critical physical security dependencies, evaluate alternative or supplementary access control solutions until the vulnerability is fully remediated.