CVE-2025-48624 is a vulnerability identified in multiple functions within the arm-smmu-v3.c source file of the Android kernel. The root cause is an out-of-bounds write triggered by improper input validation, which can corrupt kernel memory. This flaw allows a local attacker, without needing any prior elevated privileges or user interaction, to escalate their privileges on the device. The arm-smmu-v3.c component relates to the ARM System Memory Management Unit (SMMU) version 3, which manages memory access and isolation for ARM-based devices. Improper handling of inputs in this module can lead to memory corruption, potentially allowing attackers to execute arbitrary code or bypass security controls at the kernel level. Since the vulnerability is local and does not require user interaction, it can be exploited by malicious apps or compromised processes already running on the device. Although no exploits have been reported in the wild yet, the technical nature of the flaw and its location in the kernel make it a critical target for attackers seeking to gain full control over Android devices. The vulnerability affects all Android devices running vulnerable kernel versions that include the arm-smmu-v3.c code. The lack of a CVSS score indicates that detailed impact metrics are not yet published, but the nature of the flaw suggests significant risk. The vulnerability was reserved in May 2025 and published in December 2025, indicating recent discovery and disclosure. No official patches or mitigation links are currently provided, emphasizing the need for vigilance and prompt vendor response.

For European organizations, this vulnerability poses a significant risk to the security of Android devices used within corporate environments, especially those that handle sensitive data or provide access to internal networks. Successful exploitation could allow attackers to bypass Android's security model, gain root privileges, and potentially install persistent malware or exfiltrate confidential information. This could lead to data breaches, unauthorized access to corporate resources, and disruption of mobile operations. The impact extends to sectors heavily reliant on mobile technology, such as finance, healthcare, and government agencies, where compromised devices could serve as entry points for broader network attacks. Additionally, the vulnerability could undermine trust in mobile device security, affecting bring-your-own-device (BYOD) policies and remote work security postures. Since the vulnerability requires local access, the primary threat vector is malicious apps or insiders with device access, highlighting the importance of app vetting and endpoint security. The absence of user interaction for exploitation increases the risk of automated or stealthy attacks. Overall, the vulnerability could degrade confidentiality, integrity, and availability of mobile endpoints critical to European organizations.

European organizations should proactively monitor vendor communications for official patches addressing CVE-2025-48624 and apply them immediately upon release. Until patches are available, organizations should enforce strict application control policies to prevent installation of untrusted or potentially malicious apps that could exploit this vulnerability. Employing mobile device management (MDM) solutions to restrict device access and enforce security configurations can reduce exposure. Regularly auditing device kernel versions and configurations will help identify vulnerable systems. Implementing runtime protection and behavior monitoring on Android devices can detect anomalous privilege escalation attempts. Educating users about the risks of installing apps from unofficial sources and encouraging the use of Google Play Protect can further reduce attack surface. For high-risk environments, consider isolating critical mobile devices or limiting their network access to reduce potential lateral movement. Collaboration with device manufacturers and security vendors to accelerate patch development and deployment is essential. Finally, integrating this vulnerability into incident response plans will prepare organizations to respond swiftly to any exploitation attempts.