CVE-2025-36930 is a vulnerability identified in the Android kernel, specifically within the GetHostAddress function of the gxp_buffer.h source file. The root cause is a missing bounds check that leads to an out-of-bounds write condition. This type of memory corruption flaw can allow a local attacker to overwrite memory regions outside the intended buffer, potentially corrupting kernel data structures or control flow information. Because the vulnerability exists in the kernel, exploitation can result in elevation of privilege from a local user to kernel-level privileges, effectively granting full control over the device. Notably, exploitation does not require any additional execution privileges or user interaction, which lowers the barrier for attackers who already have local access. The absence of a CVSS score indicates this is a newly published vulnerability (December 2025) with no public exploit code reported yet. However, the technical details suggest a high-risk scenario due to the critical nature of kernel privilege escalation. The Android kernel is widely deployed across billions of devices globally, including smartphones, tablets, and embedded systems. This vulnerability could be leveraged by malicious applications or attackers who gain local access through other means (e.g., physical access, compromised apps) to escalate privileges and bypass security controls. The lack of patch links suggests that a fix may still be pending or in early distribution stages. Organizations should monitor updates from Google and device manufacturers closely. The vulnerability's exploitation could lead to unauthorized access to sensitive data, installation of persistent malware, or disruption of device functionality. Given the kernel-level impact, recovery from exploitation may require device reimaging or replacement. The vulnerability underscores the importance of secure coding practices, especially bounds checking in kernel code, to prevent memory corruption issues. In summary, CVE-2025-36930 represents a serious local privilege escalation risk on Android devices that demands timely mitigation to protect device integrity and confidentiality.

For European organizations, the impact of CVE-2025-36930 could be significant, particularly for those with large mobile workforces or critical operations relying on Android devices. Successful exploitation allows attackers to gain kernel-level privileges, enabling them to bypass security mechanisms, access sensitive corporate data, install persistent malware, or disrupt device operations. This could lead to data breaches, loss of intellectual property, or operational downtime. The vulnerability's local nature means attackers need some form of local access, which could be achieved through physical device access, malicious applications, or lateral movement after initial compromise. In sectors such as finance, healthcare, and government, where data confidentiality and device integrity are paramount, this vulnerability could facilitate advanced persistent threats or insider attacks. Additionally, Android devices used in industrial control systems or critical infrastructure could be targeted to cause operational disruptions. The lack of user interaction requirement increases the risk of stealthy exploitation. Given the widespread use of Android devices in Europe, the potential attack surface is large, and the impact could cascade across supply chains and service providers. Organizations may face regulatory consequences under GDPR if personal data is compromised due to exploitation. Therefore, the vulnerability poses a high risk to confidentiality, integrity, and availability of systems and data within European enterprises.

To mitigate CVE-2025-36930, European organizations should implement a multi-layered approach beyond generic patching advice. First, prioritize rapid deployment of official security patches from Google and device manufacturers as soon as they become available. Until patches are applied, restrict local access to Android devices by enforcing strong physical security controls and limiting administrative privileges. Employ mobile device management (MDM) solutions to monitor device integrity and detect anomalous behavior indicative of privilege escalation attempts. Disable or restrict installation of untrusted applications to reduce the risk of local code execution by malicious apps. Use security-enhanced kernel configurations and enable kernel hardening features such as address space layout randomization (ASLR) and kernel page-table isolation (KPTI) where supported. Conduct regular audits of device security settings and user permissions to minimize attack surface. Educate users about the risks of granting local access or installing unauthorized software. For high-risk environments, consider deploying endpoint detection and response (EDR) tools capable of identifying kernel-level exploits. Maintain an incident response plan tailored to mobile device compromise scenarios. Finally, collaborate with vendors and security communities to stay informed about emerging exploit techniques and mitigation strategies related to this vulnerability.