CVE Alert: CVE-2025-47328 – Qualcomm, Inc. – Snapdragon

Risk verdict

High risk of remote Denial-of-Service against devices using the Qualcomm WLAN HAL; urgency depends on exploit activity and patch availability.

Why this matters

An attacker can disrupt power-control processing by sending crafted requests with invalid antenna or stream values, potentially rendering devices temporarily unusable on affected networks. This could hit consumer, enterprise, and automotive deployments relying on Snapdragon WLAN, with direct impact on availability and user experience.

Most likely attack path

An attacker on the same wireless network can transmit crafted power-control requests to the WLAN HAL without authentication or user interaction, exploiting the network attack surface. The impact is a targeted DoS within the WLAN subsystem, with limited preconditions (no UI required) and the potential to affect multiple services sharing the WLAN stack.

Who is most exposed

Devices containing Qualcomm Snapdragon WLAN components—mobile devices, IoT, laptops, and automotive/embedded systems—across consumer and enterprise environments.

Detection ideas

• Spikes in power-control messages with invalid payloads observed in WLAN logs.
• Recurrent WLAN HAL processing errors or crashes in system/kernel logs.
• Unexplained connectivity outages or throughput degradation aligned with unusual WLAN control activity.
• Logs referencing buffer over-read or related CWE-126 indicators in the WLAN driver.
• Anomalous device reboots or resets tied to WLAN subsystem events.

Mitigation and prioritisation

• Apply vendor patches/firmware updates as they are released; prioritise once available.
• If KEV is true or EPSS ≥ 0.5, treat as priority 1.
• Implement compensating controls: restrict or monitor WLAN management/control frames, segment affected devices, and minimise exposure via network access controls.
• Enable enhanced logging for WLAN HAL errors and establish rapid alerting for invalid parameter events.
• Plan staged change-management with testing in lab environments before broader rollout.