CVE-2025-47321 Buffer Copy Without Checking Size of Input in Core Services
A buffer overflow in Qualcomm Snapdragon core services allows attackers to corrupt memory via crafted packets from unix clients, potentially leading to code execution.
- 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-2025-47321?
CVE-2025-47321 is a high-severity memory corruption vulnerability in Qualcomm Ar8031 Firmware, published on 18 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory corruption while copying packets received from unix clients.
Weakness: CWE-120
Which versions are affected by CVE-2025-47321?
It affects 115 products.
Products include Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware and 109 more.
How do I fix CVE-2025-47321?
No fix has been published for CVE-2025-47321 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-2025-47321 being exploited?
There is no known exploitation of CVE-2025-47321 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Ar8031 Firmware
- CVE-2025-27038 Qualcomm Multiple Chipsets Use-After-Free
- CVE-2022-25729 Improper Input Validation in MODEM
- CVE-2022-25727 Memory corruption in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music
- CVE-2021-30285 Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking
- CVE-2021-30275 Integer overflow in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking
Sources
Also known as GHSA-hg2m-cjh9-f76f.