CVE-2025-21458 Use After Free in NPU
A use-after-free vulnerability in the Qualcomm Snapdragon NPU allows attackers to execute arbitrary code or escalate privileges via concurrent buffer mapping operations.
- 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-2025-21458?
CVE-2025-21458 is a high-severity use after free vulnerability in Qualcomm Fastconnect 6900 Firmware, published on 6 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory corruption when IOCTL interface is called to map and unmap buffers simultaneously.
Weakness: CWE-416
Which versions are affected by CVE-2025-21458?
It affects 24 products.
Products include Qualcomm Fastconnect 6900 Firmware, Qualcomm Qam8255p Firmware, Qualcomm Qam8650p Firmware, Qualcomm Qam8775p Firmware, Qualcomm Qca6174a Firmware, Qualcomm Qca6698aq Firmware and 18 more.
How do I fix CVE-2025-21458?
No fix has been published for CVE-2025-21458 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-2025-21458 being exploited?
There is no known exploitation of CVE-2025-21458 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Fastconnect 6900 Firmware
Sources
Also known as GHSA-fp8f-972w-5xq2.