CVE-2025-47347 is a stack-based buffer overflow vulnerability classified under CWE-121, discovered in Qualcomm Snapdragon chipsets. The flaw occurs due to improper handling of control commands within the virtual memory management interface, leading to memory corruption. This vulnerability affects a broad range of Snapdragon models, including QAM, QCA, SA, and SRV series chipsets widely deployed in mobile phones, IoT devices, and embedded systems. The CVSS v3.1 score is 7.8 (high), with an attack vector requiring local access (AV:L), low attack complexity (AC:L), low privileges (PR:L), and no user interaction (UI:N). Successful exploitation can result in full compromise of confidentiality, integrity, and availability, allowing an attacker to execute arbitrary code with elevated privileges. Although no exploits are currently known in the wild, the vulnerability poses a significant risk due to the critical nature of the affected components and the widespread use of Snapdragon chipsets globally. The vulnerability was reserved in May 2025 and published in October 2025, with no patches currently available, emphasizing the urgency for Qualcomm and device manufacturers to release fixes. The vulnerability's exploitation requires local access, which may limit remote exploitation but still presents a serious threat in scenarios where attackers gain physical or local network access. The broad range of affected versions indicates a systemic issue in the virtual memory management implementation across Snapdragon platforms.

For European organizations, the impact of CVE-2025-47347 is substantial due to the widespread use of Qualcomm Snapdragon chipsets in smartphones, tablets, and embedded devices integral to business operations and telecommunications infrastructure. Exploitation could lead to unauthorized code execution, data leakage, and service disruption, undermining the confidentiality, integrity, and availability of sensitive information and systems. Telecommunications providers using affected hardware could face network instability or compromise, affecting critical communication services. Enterprises relying on mobile devices for secure communications and operations risk data breaches and device takeovers. The vulnerability also threatens IoT deployments in sectors such as manufacturing, healthcare, and smart cities, where Snapdragon-powered devices are common. Given the local access requirement, insider threats or attackers with physical access pose the highest risk. The absence of patches increases exposure duration, potentially allowing attackers to develop exploits. Overall, the vulnerability could disrupt business continuity, damage reputation, and incur regulatory penalties under GDPR if personal data is compromised.

Immediate mitigation steps include enforcing strict local access controls to prevent unauthorized users from interacting with vulnerable devices. Organizations should implement device hardening measures such as disabling unnecessary services and interfaces that could provide local access. Monitoring and logging of device behavior should be enhanced to detect anomalous activities indicative of exploitation attempts. Network segmentation can limit lateral movement if a device is compromised. Qualcomm and device manufacturers must prioritize developing and distributing security patches for all affected Snapdragon versions. Until patches are available, organizations should consider restricting the use of vulnerable devices in sensitive environments or deploying compensating controls such as endpoint detection and response (EDR) solutions tailored for mobile and embedded platforms. Security teams should educate users about the risks of physical device access and enforce policies to minimize exposure. Regular vulnerability scanning and asset inventory updates will help identify affected devices promptly. Collaboration with vendors for timely updates and threat intelligence sharing is essential to stay ahead of potential exploit development.