CVE-2025-47388 Buffer Copy without Checking Size of Input in DSP Service

High 7.8 Published 6 Jan 2026 Updated 7 Jan 2026

An attacker can exploit a buffer overflow in the DSP service to execute arbitrary code or escalate privileges on Android devices using Qualcomm Snapdragon chips.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2025-47388?

CVE-2025-47388 is a high-severity memory corruption vulnerability in Qualcomm Fastconnect 6200 Firmware, published on 6 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Memory corruption while passing pages to DSP with an unaligned starting address.

Weakness: CWE-120

Which versions are affected by CVE-2025-47388?

It affects 45 products.

Products include Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qcs610 Firmware, Qualcomm Qmp1000 Firmware and 39 more.

How do I fix CVE-2025-47388?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-47388 being exploited?

There is no known exploitation of CVE-2025-47388 in the wild and no public exploit code.

All Qualcomm Fastconnect 6200 Firmware vulnerabilities

Sources

Also known as 4207075, A-449733645, ASB-A-449733645, GHSA-2923-vx22-37wp.