CVE-2025-27074 is a vulnerability identified in multiple Qualcomm Snapdragon platforms resulting from an incorrect calculation of buffer size (CWE-131) during the processing of GP (Generic Packet) command responses. This flaw leads to memory corruption, which can be exploited to achieve arbitrary code execution, privilege escalation, or denial of service. The vulnerability affects a broad spectrum of Snapdragon chipsets, including mobile platforms (e.g., Snapdragon 820, 821, 429), automotive platforms, and various IoT and embedded platforms (e.g., Immersive Home series, IPQ series, QCA series). The CVSS v3.1 score is 8.8, indicating high severity, with an attack vector of local access (AV:L), low attack complexity (AC:L), requiring low privileges (PR:L), and no user interaction (UI:N). The scope is changed (S:C), meaning exploitation can affect resources beyond the vulnerable component. The impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H). The vulnerability arises because the affected Snapdragon firmware or software incorrectly calculates the buffer size when handling GP command responses, potentially leading to buffer overflows or other memory corruption issues. This can allow attackers with limited privileges to execute arbitrary code or crash the system. Although no known exploits are reported in the wild yet, the vulnerability’s characteristics and affected product range make it a critical concern. The lack of currently available patches requires organizations to implement interim mitigations and prepare for prompt patch deployment once available.

For European organizations, the impact of CVE-2025-27074 is significant due to the widespread use of Qualcomm Snapdragon chipsets in mobile devices, automotive systems, and IoT infrastructure. Exploitation could lead to unauthorized access to sensitive data, disruption of critical services, and compromise of device integrity. Telecommunications providers relying on Snapdragon-based infrastructure may face service outages or data breaches. Automotive manufacturers and suppliers using affected platforms risk vehicle system compromise, potentially impacting safety and operational reliability. Industrial IoT deployments could suffer from operational disruptions or espionage. The vulnerability’s ability to be exploited with low privileges and no user interaction increases the risk of stealthy attacks. The broad range of affected platforms means that many sectors, including finance, healthcare, transportation, and manufacturing, could be impacted. The absence of known exploits currently provides a window for proactive defense, but the high severity score underscores the urgency of mitigation to prevent future attacks.

1. Monitor Qualcomm’s official security advisories and apply patches promptly once released for all affected Snapdragon platforms. 2. Restrict access to interfaces that process GP commands to trusted and authenticated entities only, minimizing exposure to local attackers. 3. Implement strict access controls and privilege separation on devices using affected chipsets to limit the ability of low-privilege users to send crafted GP commands. 4. Employ runtime protections such as memory corruption mitigations (e.g., stack canaries, ASLR, DEP) where supported by the platform firmware. 5. Conduct thorough security audits and penetration testing focusing on GP command processing components to identify potential exploitation attempts. 6. Deploy network segmentation and monitoring to detect anomalous traffic patterns indicative of exploitation attempts targeting affected devices. 7. For automotive and IoT deployments, ensure secure update mechanisms are in place to facilitate rapid patching. 8. Educate security teams about this vulnerability’s characteristics to enhance detection and response capabilities.