CVE Alert: CVE-2025-47315 – Qualcomm, Inc. – Snapdragon

Risk verdict

High risk: local attackers could trigger memory corruption via repeated unmap requests from a guest VM, potentially gaining arbitrary code execution within the platform.

Why this matters

Memory corruption in automotive software with guest virtualization can enable attackers to access or alter safety-critical functions, compromising confidentiality, integrity and availability. For organisations, this could translate to unsafe vehicle behaviour, regulatory scrutiny, and costly recalls or OTA remediation.

Most likely attack path

An attacker with local access to a vehicle’s guest VM can exploit a use-after-free condition by repeatedly issuing memory unmap requests. With LOW privileges and no user interaction required, exploitation could escalate within the platform’s security domain, enabling persistence or lateral movement across components that share the same trust boundary.

Who is most exposed

Vehicles and fleets using virtualization-enabled platform components in infotainment, telematics, or assisted-driving stacks are at risk—particularly where multiple subsystems run in separate guest environments on a common automotive OS.

Detection ideas

• Unusual surge in guest VM memory unmap events or allocator warnings
• Crashes or panics tied to memory management or hypervisor/host boundaries
• Memory corruption indicators in crash dumps or heap-usage logs
• Reboot loops following guest VM activity
• Anomalous guest-to-host memory mappings recorded in diagnostics

Mitigation and prioritisation

• Apply vendor patch via the official security bulletin; deploy in test and then production as per change management.
• Ensure updated memory protections and strict VM isolation; limit unmap-related signals if configurable.
• Monitor memory allocator health and crash dumps; enable enhanced logging around guest VM memory events.
• If KEV is true or EPSS ≥ 0.5 (data not provided here), treat as priority 1; otherwise prioritise as high with a rapid remediation window.
• Develop a rollback plan and coordinate OTA updates across affected vehicle platforms.