CVE-2023-21651 Incorrect Type Conversion or Cast in Core
Memory corruption in Qualcomm Snapdragon TEE allows attackers to execute arbitrary code or escalate privileges via incorrect type casting.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-21651?
CVE-2023-21651 is a critical memory corruption vulnerability in Qualcomm Aqt1000 Firmware, published on 8 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory Corruption in Core due to incorrect type conversion or cast in secure_io_read/write function in TEE.
Weakness: CWE-704
Which versions are affected by CVE-2023-21651?
It affects 140 products.
Products include Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Mdm9205 Firmware and 134 more.
How do I fix CVE-2023-21651?
No fix has been published for CVE-2023-21651 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-2023-21651 being exploited?
There is no known exploitation of CVE-2023-21651 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Aqt1000 Firmware
- CVE-2025-21479 Qualcomm Multiple Chipsets Incorrect Authorization
- CVE-2025-21480 Qualcomm Multiple Chipsets Incorrect Authorization
- CVE-2023-28562 Buffer Copy Without Checking Size of Input in QESL
- CVE-2022-40514 Buffer copy without checking size of input in WLAN Firmware
- CVE-2022-22096 Memory corruption in Snapdragon Connectivity, Snapdragon Mobile
Sources
Also known as GHSA-99gr-hqgx-r784.