CVE-2025-27056 Use After Free in DSP Service
A use-after-free vulnerability in the Qualcomm DSP service allows attackers to execute arbitrary code or escalate privileges during resource cleanup.
- 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-2025-27056?
CVE-2025-27056 is a high-severity use after free vulnerability in Qualcomm Fastconnect 7800 Firmware, published on 8 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory corruption during sub-system restart while processing clean-up to free up resources.
Weakness: CWE-416
Which versions are affected by CVE-2025-27056?
It affects 25 products.
Products include Qualcomm Fastconnect 7800 Firmware, Qualcomm Qmp1000 Firmware, Qualcomm Sm8735 Firmware, Qualcomm Sm8750 Firmware, Qualcomm Sm8750p Firmware, Qualcomm Snapdragon 8 Gen 3 Mobile Firmware and 19 more.
How do I fix CVE-2025-27056?
Apply the vendor's patch.
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-2025-27056 being exploited?
There is no known exploitation of CVE-2025-27056 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Fastconnect 7800 Firmware
Sources
Also known as 4005840, A-409047405, ASB-A-409047405, GHSA-cx9f-x7qf-72gq.