CVE-2025-11622 is a vulnerability classified under CWE-502, which pertains to insecure deserialization of untrusted data within Ivanti Endpoint Manager versions prior to 2024 SU4. Deserialization is the process of converting data from a byte stream back into an object; if this process is insecure, it can allow attackers to manipulate serialized objects to execute arbitrary code or escalate privileges. In this case, a local authenticated attacker can exploit the flaw by supplying malicious serialized data to the Endpoint Manager, leading to privilege escalation. The attacker must have some level of authenticated access to the system but does not require user interaction beyond that. The vulnerability affects confidentiality, integrity, and availability, as it can lead to unauthorized access and control over the system. The CVSS v3.1 score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) indicates that the attack vector is local, requires low attack complexity, low privileges, no user interaction, and impacts all three security properties severely. Although no known exploits are currently in the wild, the vulnerability's nature makes it a critical concern for organizations relying on Ivanti Endpoint Manager for endpoint management and security. The lack of available patches at the time of publication means organizations must implement interim mitigations to reduce risk.

The primary impact of CVE-2025-11622 is the potential for local authenticated attackers to escalate their privileges within affected Ivanti Endpoint Manager environments. This can lead to unauthorized administrative access, allowing attackers to manipulate endpoint configurations, deploy malicious payloads, or disrupt endpoint management operations. The compromise of endpoint management systems can have cascading effects, including exposure of sensitive data, disruption of security controls, and potential lateral movement within enterprise networks. Organizations relying heavily on Ivanti Endpoint Manager for managing large fleets of devices are particularly at risk, as attackers gaining elevated privileges could undermine the entire endpoint security posture. The vulnerability affects confidentiality, integrity, and availability, making it a high-risk issue that could facilitate further attacks or data breaches.

1. Apply patches or updates from Ivanti as soon as they become available, specifically upgrading to version 2024 SU4 or later. 2. Until patches are released, restrict local access to systems running Ivanti Endpoint Manager to trusted personnel only, minimizing the risk of local authenticated attackers. 3. Implement strict access controls and enforce the principle of least privilege to limit the number of users with local authenticated access. 4. Monitor logs and endpoint management activity for unusual behavior indicative of privilege escalation attempts or deserialization exploitation. 5. Use application whitelisting and endpoint protection solutions to detect and block suspicious code execution. 6. Conduct regular security audits and vulnerability assessments focused on endpoint management infrastructure. 7. Educate administrators and users about the risks of insecure deserialization and the importance of safeguarding credentials and local access.