CVE-2025-27029 is a high-severity vulnerability classified under CWE-126 (Buffer Over-read) affecting a wide range of Qualcomm Snapdragon platforms and related wireless connectivity chipsets. The vulnerability arises due to improper handling of the tone measurement response buffer, specifically when the response buffer is out of the expected range. This results in a transient denial-of-service (DoS) condition during processing. The flaw allows an unauthenticated remote attacker to cause a DoS without requiring user interaction, exploiting the vulnerability over the network (AV:N). The vulnerability impacts the availability of affected devices by causing them to crash or become unresponsive temporarily. The affected products include numerous Snapdragon mobile platforms (including the Snapdragon 8 Gen 3 Mobile Platform), FastConnect wireless subsystems, Immersive Home platforms, and a broad set of IPQ and QCA series wireless SoCs and chipsets commonly used in mobile devices, routers, IoT gateways, and other networked embedded systems. The vulnerability does not impact confidentiality or integrity directly but can disrupt service availability. No known exploits are currently reported in the wild, and no patches have been linked yet. Given the extensive list of affected hardware, the vulnerability poses a significant risk to devices relying on Qualcomm Snapdragon and related chipsets for wireless communication and processing. The root cause is a buffer over-read during tone measurement response processing, which can be triggered remotely, making exploitation feasible without authentication or user interaction.

For European organizations, the impact of CVE-2025-27029 can be substantial, especially for enterprises and service providers relying on Qualcomm Snapdragon-based infrastructure and devices. The affected chipsets are widely used in smartphones, wireless access points, IoT devices, and embedded systems. A successful exploitation could lead to transient denial-of-service conditions, causing network disruptions, degraded service quality, or device reboots. This can affect critical communication infrastructure, enterprise mobile devices, and IoT deployments, potentially interrupting business operations, communications, and service availability. In sectors such as telecommunications, manufacturing, healthcare, and smart city deployments, where Qualcomm chipsets are prevalent, this vulnerability could lead to operational downtime and increased maintenance costs. Additionally, transient DoS conditions could be leveraged as part of a larger attack chain to disrupt services or create windows for further exploitation. The lack of required authentication and user interaction increases the risk, as attackers can remotely trigger the vulnerability over the network. Given the widespread use of Qualcomm chipsets in consumer and enterprise devices across Europe, the vulnerability could impact a broad range of organizations, from SMEs to large enterprises and critical infrastructure providers.

1. Immediate mitigation should focus on monitoring and network-level protections to detect and block anomalous traffic patterns that could trigger the tone measurement response buffer processing, such as malformed or unexpected wireless management frames. 2. Organizations should inventory all devices and infrastructure components using affected Qualcomm Snapdragon and related chipsets to assess exposure. 3. Engage with device and equipment vendors to obtain firmware or software updates addressing CVE-2025-27029 as soon as they become available. 4. Until patches are available, consider segmenting vulnerable devices on isolated network segments with strict access controls to limit exposure to untrusted networks. 5. Deploy intrusion detection/prevention systems (IDS/IPS) with updated signatures to detect attempts to exploit this vulnerability once signatures are released. 6. For mobile device fleets, enforce mobile device management (MDM) policies to ensure timely updates and restrict installation of untrusted applications that might attempt to exploit the vulnerability. 7. Implement robust incident response plans to quickly identify and remediate any disruptions caused by exploitation attempts. 8. Collaborate with Qualcomm and industry groups for coordinated vulnerability disclosure and patch deployment strategies.