CVE-2025-36922 is a vulnerability identified in the Android kernel, specifically within the bigo_map function of the bigo_iommu.c source file. The flaw arises from a use-after-free condition, a memory corruption issue where the system attempts to use memory after it has been freed, leading to undefined behavior. This vulnerability can cause information disclosure and allows an attacker with local execution privileges to escalate their privileges to the kernel level, effectively gaining system-level control over the device. The exploitation does not require any user interaction, increasing the risk of automated or stealthy attacks once local access is obtained. The vulnerability affects Android kernel versions, which are widely deployed across millions of devices globally. Although no public exploits have been reported yet, the nature of the vulnerability—kernel-level privilege escalation—makes it a critical concern for device security. The lack of a CVSS score suggests the need for an expert severity assessment, which indicates a high severity due to the potential impact on confidentiality, integrity, and availability of the device. The vulnerability could be leveraged to bypass security controls, install persistent malware, or exfiltrate sensitive data. The absence of patch links indicates that mitigation currently relies on vendor updates, which should be closely monitored. The vulnerability's presence in the kernel means that traditional application-level security controls may not be sufficient to prevent exploitation.

For European organizations, the impact of CVE-2025-36922 could be significant, particularly for those relying heavily on Android devices for business operations, communications, or as part of their critical infrastructure. An attacker exploiting this vulnerability could gain kernel-level privileges, allowing them to bypass security mechanisms, access sensitive corporate data, manipulate device behavior, or deploy persistent malware. This could lead to data breaches, operational disruptions, and loss of trust. Industries such as finance, healthcare, telecommunications, and government agencies are especially at risk due to the sensitive nature of their data and regulatory requirements. Additionally, the vulnerability could be exploited in targeted attacks against high-value individuals or organizations within Europe. The lack of user interaction needed for exploitation increases the risk of automated attacks or worm-like propagation in environments where local access is possible. The widespread use of Android devices in Europe, combined with the strategic importance of technology sectors, amplifies the potential impact. Furthermore, the vulnerability could be leveraged in supply chain attacks or espionage campaigns, given the kernel-level access it grants.

To mitigate the risks posed by CVE-2025-36922, European organizations should implement a multi-layered approach: 1) Monitor official Google security advisories and promptly apply any patches or kernel updates addressing this vulnerability once released. 2) Restrict local access to Android devices by enforcing strong authentication mechanisms and limiting physical or remote shell access to trusted personnel only. 3) Employ mobile device management (MDM) solutions to enforce security policies, control application installations, and detect anomalous behavior indicative of exploitation attempts. 4) Utilize kernel integrity monitoring tools and security modules (e.g., SELinux on Android) to detect and prevent unauthorized kernel modifications. 5) Educate users about the risks of granting unnecessary permissions or installing untrusted applications that could facilitate local privilege escalation. 6) For high-risk environments, consider isolating critical Android devices from untrusted networks and implementing network segmentation to limit lateral movement. 7) Conduct regular security audits and penetration testing focused on local privilege escalation vectors. These steps go beyond generic advice by focusing on controlling local access, monitoring kernel integrity, and preparing for rapid patch deployment.