CVE-2025-27047 is a high-severity use-after-free vulnerability (CWE-416) identified in multiple Qualcomm Snapdragon and related platforms, including FastConnect modules, Snapdragon Compute platforms, and various audio and video collaboration components. The flaw arises from improper memory management during the processing of the TESTPATTERNCONFIG escape path, leading to memory corruption. Use-after-free vulnerabilities occur when a program continues to use a pointer after the memory it points to has been freed, potentially allowing attackers to execute arbitrary code, cause denial of service, or escalate privileges. The affected products span a wide range of Qualcomm's connectivity and compute platforms, including FastConnect 6700, 6900, 7800, QCM and QCS series chipsets, Snapdragon 7c+ Gen 3 and 8cx Gen 3 Compute platforms, and various WCD and WSA audio components. The CVSS v3.1 base score of 7.8 reflects a high severity, with the vector indicating local attack vector (AV:L), low attack complexity (AC:L), requiring low privileges (PR:L), no user interaction (UI:N), unchanged scope (S:U), and high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). This suggests that an attacker with local access and limited privileges can exploit this vulnerability without user interaction to gain full control over the affected system components. No known exploits are currently reported in the wild, and no patches have been linked yet, indicating the need for vigilance and prompt remediation once available. The vulnerability's presence in critical connectivity and compute modules used in mobile devices, laptops, and embedded systems makes it a significant threat vector, especially in environments relying on Qualcomm hardware for secure communications and processing.

For European organizations, this vulnerability poses substantial risks due to the widespread use of Qualcomm Snapdragon platforms in smartphones, laptops, IoT devices, and embedded systems across various sectors including telecommunications, finance, healthcare, and government. Exploitation could lead to unauthorized access to sensitive data, disruption of critical services, and potential compromise of device integrity. Given the high impact on confidentiality, integrity, and availability, attackers could execute arbitrary code, intercept or manipulate communications, or cause device crashes leading to denial of service. This is particularly concerning for organizations handling personal data under GDPR, where breaches could result in regulatory penalties and reputational damage. The local attack vector implies that attackers need some level of access to the device, which could be achieved through physical access, compromised user accounts, or lateral movement within corporate networks. The lack of user interaction requirement increases the risk of automated or stealthy exploitation. The vulnerability's presence in compute platforms used in enterprise laptops also raises concerns about potential compromise of corporate endpoints, enabling further network infiltration or data exfiltration.

Organizations should prioritize the following mitigation steps: 1) Inventory and identify all devices using affected Qualcomm Snapdragon and related platforms, including mobile devices, laptops, and embedded systems. 2) Monitor Qualcomm and device vendors for official patches or firmware updates addressing CVE-2025-27047 and apply them promptly. 3) Implement strict access controls to limit local access to devices, including enforcing strong authentication, device encryption, and endpoint security solutions to detect suspicious activities. 4) Employ network segmentation to reduce the risk of lateral movement from compromised devices. 5) Use mobile device management (MDM) and endpoint detection and response (EDR) tools to monitor for anomalous behavior indicative of exploitation attempts. 6) Educate users about the risks of unauthorized physical access and the importance of device security hygiene. 7) For critical systems, consider additional runtime protections such as memory corruption mitigations (e.g., Control Flow Integrity, Address Space Layout Randomization) where supported. 8) Establish incident response plans specifically addressing potential exploitation scenarios involving local privilege escalation and memory corruption vulnerabilities.