CVE-2025-47340 Out-of-bounds Write in DSP Service
An out-of-bounds write in the DSP service allows attackers to execute arbitrary code or escalate privileges via a malicious IOCTL call.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-47340?
CVE-2025-47340 is a high-severity memory corruption vulnerability in Qualcomm Fastconnect 6900 Firmware, published on 9 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory corruption while processing IOCTL call to get the mapping.
Weakness: CWE-787
Which versions are affected by CVE-2025-47340?
It affects 18 products.
Products include Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qcc2072 Firmware, Qualcomm Sc8380xp Firmware, Qualcomm Wcd9378c Firmware, Qualcomm Wcd9380 Firmware and 12 more.
How do I fix CVE-2025-47340?
No fix has been published for CVE-2025-47340 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-47340 being exploited?
There is no known exploitation of CVE-2025-47340 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Fastconnect 6900 Firmware
Sources
Also known as GHSA-jcqr-42p7-7883.