CVE-2025-27043 Buffer Copy Without Checking Size of Input in Video
Attacker can execute arbitrary code or escalate privileges via memory corruption in Qualcomm Snapdragon video firmware.
- 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-2025-27043?
CVE-2025-27043 is a high-severity memory corruption vulnerability in Qualcomm Ar8035 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 while processing manipulated payload in video firmware.
Weakness: CWE-120
Which versions are affected by CVE-2025-27043?
It affects 206 products.
Products include Qualcomm Ar8035 Firmware, Qualcomm Csr8811 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware and 200 more.
How do I fix CVE-2025-27043?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-27043 being exploited?
There is no known exploitation of CVE-2025-27043 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Ar8035 Firmware
- CVE-2023-33106 Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset
- CVE-2024-45569 Improper Validation of Array Index in WLAN Host Communication
- CVE-2024-21473 Improper Input Validation in WIN SON
- CVE-2023-28582 Buffer Copy Without Checking Size of Input in Data Modem
- CVE-2023-43552 Use After Free in WLAN Host Communication
Sources
Also known as 3935643, A-409047487, ASB-A-409047487, GHSA-jx9j-66hw-3jh5.