CVE Alert: CVE-2025-47347 – Qualcomm, Inc. – Snapdragon

Risk verdict

High potential impact due to memory corruption in a VM memory management interface, but currently no publicly observed exploitation activity.

Why this matters

If exploited, an attacker with local access could escalate to arbitrary code execution within the automotive software stack, potentially affecting safety-critical functions or privacy. In deployed fleets using automotive SoCs with a QNX-based stack, this can enable persistent control-plane disruption or stealthy device compromise, especially where maintenance or diagnostic interfaces are physically accessible.

Most likely attack path

Exploitation requires local access (local attacker) with low privileges and no user interaction, targeting the VM memory management component via control commands. The low attack complexity raises feasibility for adversaries with physical access or compromised service environments; unchanged scope indicates the attacker would likely operate within the same device boundary, limiting cross-ECU movement unless additional flaws exist.

Who is most exposed

Vehicles and fleets that rely on mass-market automotive SoCs with a QNX-based stack, especially where maintenance dashboards or diagnostic interfaces are accessible or poorly segmented. Organizations with public-facing or physically accessible engineering interfaces are at greater risk.

Detection ideas

• Frequent VM memory management faults or kernel-level crashes.
• Memory corruption crash dumps showing stack-based overflow patterns.
• Abnormal sequences of control commands to the VM interface triggering faults.
• Elevated memory access events or unusual privilege transitions in local logs.
• Anomalous, repeatable fault bursts during diagnostic or control-command activity.

Mitigation and prioritisation

• Apply vendor-provided firmware/driver updates as soon as available; align with the October 2025 advisory cadence.
• Enforce strict local access controls: segment diagnostic interfaces, require authentication, and limit privileged commands to trusted operators.
• Disable or tightly gate non-essential control channels to the VM memory manager; implement input validation and sanity checks.
• Monitor crash analytics and memory corruption indicators; establish alerting for repeated VM faults.
• If patching is delayed, implement compensating controls and document a remediation timeline; treat as priority 2 unless a KEV/EPSS update elevates it.