CVE-2025-21474 Use After Free in BTHOST
A use-after-free flaw in Qualcomm Snapdragon Bluetooth firmware allows attackers to execute arbitrary code or escalate privileges via A2DP 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-2025-21474?
CVE-2025-21474 is a high-severity use after free vulnerability in Qualcomm Fastconnect 6800 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 while processing commands from A2dp sink command queue.
Weakness: CWE-416
Which versions are affected by CVE-2025-21474?
It affects 45 products.
Products include Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qam8295p Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6426 Firmware and 39 more.
How do I fix CVE-2025-21474?
No fix has been published for CVE-2025-21474 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-2025-21474 being exploited?
There is no known exploitation of CVE-2025-21474 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Fastconnect 6800 Firmware
- CVE-2023-28581 Improper Restriction of Operations within the Bounds of a Memory Buffer in WLAN Firmware
- CVE-2025-27037 Use After Free in Camera Driver
- CVE-2025-21455 Time-of-check Time-of-use (TOCTOU) Race Condition in Camera_Linux
- CVE-2024-45566 Use After Free in Camera Driver
- CVE-2024-33069 Use After Free in WLAN Host
Sources
Also known as GHSA-v66r-m998-m46p.