CVE-2025-48647 is a vulnerability identified in the cpm_fwtp_msg_handler function within the cpm/google/lib/tracepoint/cpm_fwtp_ipc.c source file of Google Devices. The root cause is improper input validation that can lead to a memory overwrite condition. This flaw allows an attacker with local access to the device to perform a local privilege escalation without requiring additional execution privileges or user interaction. The vulnerability is significant because memory overwrites can corrupt critical data structures or control flow, enabling attackers to elevate their privileges and potentially execute arbitrary code or bypass security controls. The affected product is broadly described as 'Google Devices,' which likely includes a range of consumer and enterprise hardware running Google firmware or operating systems. No specific affected versions or patches have been disclosed, and no known exploits have been detected in the wild as of the publication date. The vulnerability was reserved in May 2025 and published in January 2026. The absence of a CVSS score necessitates an independent severity assessment. The vulnerability's exploitation requires local access but no user interaction, increasing the risk in environments where multiple users share devices or where devices are physically accessible. The lack of patches means organizations must rely on mitigating controls until updates are available.

For European organizations, this vulnerability poses a risk of unauthorized privilege escalation on Google Devices, potentially compromising device integrity and confidentiality of data processed or stored on these devices. Organizations using Google Devices in enterprise environments, including offices, manufacturing, or critical infrastructure, could see attackers gaining elevated privileges, leading to unauthorized access to sensitive information or disruption of device functionality. The lack of required user interaction and no need for additional execution privileges lowers the barrier for exploitation by insiders or attackers with limited access. This could facilitate lateral movement within networks or persistent footholds. The impact is particularly concerning for sectors with strict data protection regulations such as finance, healthcare, and government agencies in Europe. Additionally, compromised devices could be used as pivot points for broader network attacks. The absence of patches increases exposure time, making proactive mitigation essential.

1. Restrict physical and local access to Google Devices to trusted personnel only, minimizing the risk of local exploitation. 2. Implement strict user account controls and limit the number of users with local access privileges. 3. Monitor device logs and behavior for signs of memory corruption or unusual privilege escalations using endpoint detection and response (EDR) tools. 4. Employ runtime memory protection technologies such as Address Space Layout Randomization (ASLR) and Data Execution Prevention (DEP) if supported by the device firmware. 5. Stay informed about official security advisories from Google and apply patches immediately once they become available. 6. Consider network segmentation to isolate vulnerable devices from critical systems to limit potential lateral movement. 7. Conduct regular security audits and penetration testing focusing on local privilege escalation vectors. 8. Educate users and administrators about the risks of local access vulnerabilities and enforce strong physical security controls.