CVE-2021-1921 Race condition in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile
A race condition in Qualcomm Snapdragon hypervisor memory operations allows attackers to cause memory corruption, potentially leading to code execution or privilege escalation.
- 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-2021-1921?
CVE-2021-1921 is a high-severity vulnerability in Qualcomm Aqt1000 Firmware, published on 12 Nov 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Possible memory corruption due to Improper handling of hypervisor unmap operations for concurrent memory operations in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile
Weakness: CWE-367
Which versions are affected by CVE-2021-1921?
It affects 57 products.
Products include Qualcomm Aqt1000 Firmware, Qualcomm Qca6390 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qca6420 Firmware, Qualcomm Qca6421 Firmware, Qualcomm Qca6426 Firmware and 51 more.
How do I fix CVE-2021-1921?
No fix has been published for CVE-2021-1921 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-1921 being exploited?
There is no known exploitation of CVE-2021-1921 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-8wpq-w3g7-g8cr.