CVE-2025-11622 is a vulnerability classified under CWE-502 (Deserialization of Untrusted Data) affecting Ivanti Endpoint Manager versions before 2024 SU4. The flaw arises from the product's insecure handling of serialized data, which can be manipulated by a local authenticated attacker to escalate privileges. Deserialization vulnerabilities occur when software deserializes data from untrusted sources without proper validation, potentially allowing attackers to execute arbitrary code or alter program control flow. In this case, the attacker must have local authenticated access, which lowers the attack vector but still presents a significant risk in environments where multiple users have access to endpoint management systems. The vulnerability impacts confidentiality, integrity, and availability, as attackers can gain elevated privileges to access sensitive data, modify configurations, or disrupt services. The CVSS 3.1 score of 7.8 reflects high severity with metrics AV:L (local attack vector), AC:L (low attack complexity), PR:L (low privileges required), UI:N (no user interaction), and full impact on confidentiality, integrity, and availability. No public exploits have been reported yet, but the vulnerability is published and should be treated as a critical risk due to the potential impact on enterprise endpoint management. Ivanti Endpoint Manager is widely used for managing and securing endpoints, making this vulnerability particularly concerning for organizations relying on it for IT asset management and security enforcement.

For European organizations, this vulnerability poses a serious risk as Ivanti Endpoint Manager is commonly deployed in enterprise environments to manage endpoints and enforce security policies. Successful exploitation could allow attackers to escalate privileges locally, potentially leading to unauthorized access to sensitive data, disruption of endpoint management operations, and further lateral movement within networks. This could compromise the confidentiality and integrity of corporate data and affect availability by disrupting endpoint management functions. Critical sectors such as finance, healthcare, government, and manufacturing that rely heavily on endpoint management for compliance and security posture are particularly vulnerable. The local authentication requirement means insider threats or compromised user accounts could be leveraged to exploit this vulnerability. Given the interconnected nature of European IT infrastructures and regulatory requirements like GDPR, exploitation could lead to significant legal and financial repercussions.

European organizations should immediately verify their Ivanti Endpoint Manager version and apply the 2024 SU4 update or later as soon as it becomes available. Until patched, restrict local access to systems running Endpoint Manager to trusted personnel only and enforce strict access controls and monitoring. Employ application whitelisting and endpoint detection and response (EDR) solutions to detect anomalous behavior indicative of exploitation attempts. Conduct regular audits of user privileges to minimize the number of users with local access rights. Additionally, implement network segmentation to limit lateral movement from compromised endpoints. Organizations should also monitor logs for unusual deserialization activity or privilege escalation attempts and prepare incident response plans tailored to endpoint management compromise scenarios. Training IT staff on the risks of deserialization vulnerabilities and secure coding practices can help prevent similar issues in the future.