CVE-2025-27031 Use After Free in Bluetooth HOST
A use-after-free vulnerability in Qualcomm Bluetooth HOST allows attackers to execute arbitrary code or escalate privileges via IOCTL commands.
- 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-2025-27031?
CVE-2025-27031 is a high-severity use after free vulnerability in Qualcomm Fastconnect 6700 Firmware, published on 3 Jun 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 commands, when the buffer in write loopback mode is accessed after being freed.
Weakness: CWE-416
Which versions are affected by CVE-2025-27031?
It affects 21 products.
Products include Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qcm5430 Firmware, Qualcomm Qcm6490 Firmware, Qualcomm Qcs5430 Firmware and 15 more.
How do I fix CVE-2025-27031?
No fix has been published for CVE-2025-27031 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2025-27031 being exploited?
There is no known exploitation of CVE-2025-27031 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Fastconnect 6700 Firmware
- CVE-2024-43047 Qualcomm Multiple Chipsets Use-After-Free
- CVE-2023-21671 Improper Input Validation in Core
- CVE-2024-21464 Buffer Copy Without Checking Size of Input in Data Network Stack & Connectivity
- CVE-2024-33047 Buffer Over-read in Display
- CVE-2024-23360 Improper Access Control in Graphics Windows
Sources
Also known as GHSA-w7pg-pjp7-vmxw.