CVE-2021-35123 Memory corruption in Snapdragon Connectivity, Snapdragon Industrial IOT
A buffer overflow in Snapdragon Connectivity allows attackers to execute arbitrary code or escalate privileges via malicious over-the-air data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-35123?
CVE-2021-35123 is a high-severity memory corruption vulnerability in Qualcomm Aqt1000 Firmware, published on 14 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Buffer copy in GATT multi notification due to improper length check for the data coming over-the-air in Snapdragon Connectivity, Snapdragon Industrial IOT
Which versions are affected by CVE-2021-35123?
It affects 32 products.
Products include Qualcomm Aqt1000 Firmware, Qualcomm Qca6390 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Sd480 Firmware, Qualcomm Sd660 Firmware, Qualcomm Sd778g Firmware and 26 more.
How do I fix CVE-2021-35123?
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-2021-35123 being exploited?
There is no known exploitation of CVE-2021-35123 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 3032290, A-213239948, ASB-A-213239948, GHSA-88pj-4633-qpww.