CVE-2023-21670 Improper Access control in GPU Subsystem
An attacker can execute arbitrary commands in privileged mode via the GPU subsystem, leading to memory corruption and potential privilege escalation on Android devices.
- 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-2023-21670?
CVE-2023-21670 is a high-severity memory corruption vulnerability in Qualcomm 315 5g Iot Modem Firmware, published on 6 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory Corruption in GPU Subsystem due to arbitrary command execution from GPU in privileged mode.
Which versions are affected by CVE-2023-21670?
It affects 182 products.
Products include Qualcomm 315 5g Iot Modem Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm C-V2x9150 Firmware, Qualcomm Csra6620 Firmware and 176 more.
How do I fix CVE-2023-21670?
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-2023-21670 being exploited?
There is no known exploitation of CVE-2023-21670 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm 315 5g Iot Modem Firmware
- CVE-2023-33107 Qualcomm Multiple Chipsets Integer Overflow
- CVE-2023-33063 Qualcomm Multiple Chipsets Use-After-Free
- CVE-2025-27034 Improper Validation of Array Index in Multi-Mode Call Processor
- CVE-2023-22388 Use of Out-of-range Pointer Offset in Multi-mode Call Processor
- CVE-2023-28578 Improper Input Validation in Services
Sources
Also known as 3425942, A-276750663, ASB-A-276750663, GHSA-w2x2-g32p-v8fp.