CVE-2025-47346 is an out-of-bounds write vulnerability classified under CWE-787, discovered in Qualcomm Snapdragon chipsets and related platforms. The vulnerability occurs due to improper memory handling while processing a secure logging command within a trusted application environment. This memory corruption can lead to arbitrary code execution or privilege escalation by overwriting critical memory regions. Affected products include a broad spectrum of Qualcomm hardware such as FastConnect modules, Snapdragon mobile platforms (including Snapdragon 4 Gen 2, 6 Gen 1, 8 Gen 3), various modem-RF systems, and multiple wireless connectivity chipsets. The vulnerability requires local attacker privileges but does not require user interaction, making it exploitable by malicious applications or users with limited access to the device. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability, with low attack complexity and low privileges required. No patches are currently linked, and no known exploits have been reported in the wild as of the publication date. The vulnerability's presence in trusted applications handling secure logging suggests potential for deep system compromise if exploited. Due to the widespread deployment of Qualcomm Snapdragon chipsets in mobile phones, IoT devices, and automotive systems, the vulnerability poses a significant risk to device security and user data integrity.

European organizations using devices powered by affected Qualcomm Snapdragon chipsets face risks including unauthorized privilege escalation, potential remote code execution (if combined with other vulnerabilities), and system instability or crashes. This can lead to data breaches, disruption of critical services, and compromise of sensitive communications. Telecommunications providers, automotive manufacturers, and IoT device operators in Europe are particularly vulnerable due to their reliance on these chipsets for connectivity and processing. The vulnerability could be exploited to bypass security controls, access confidential information, or disrupt device availability, impacting business operations and user safety. Given the integration of these chipsets in consumer and industrial devices, the attack surface is extensive, increasing the likelihood of targeted attacks or malware leveraging this flaw. The absence of known exploits currently provides a window for proactive mitigation, but the high severity score indicates urgency in addressing the vulnerability to prevent future exploitation.

1. Monitor Qualcomm’s official security advisories and apply firmware or software patches promptly once released. 2. Restrict local access to devices, limiting the ability of unprivileged users or applications to interact with trusted applications handling secure logging. 3. Employ mobile device management (MDM) solutions to enforce security policies and control application permissions on affected devices. 4. Conduct regular security audits and anomaly detection focusing on secure logging processes and memory integrity. 5. For organizations deploying IoT or automotive systems with affected chipsets, implement network segmentation and strict access controls to minimize exposure. 6. Educate users and administrators about the risks of installing untrusted applications that could exploit local vulnerabilities. 7. Collaborate with device vendors to ensure timely updates and verify patch deployment status across all affected assets. 8. Consider deploying runtime application self-protection (RASP) or endpoint detection and response (EDR) tools capable of detecting exploitation attempts targeting memory corruption vulnerabilities.