CVE-2021-30321 Memory corruption in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity
A buffer overflow in Snapdragon firmware allows attackers to execute arbitrary code or cause denial of service via crafted MBSSID scan information elements.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-30321?
CVE-2021-30321 is a critical memory corruption vulnerability in Qualcomm Aqt1000 Firmware, published on 12 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Possible buffer overflow due to lack of parameter length check during MBSSID scan IE parse in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity
Weakness: CWE-120
Which versions are affected by CVE-2021-30321?
It affects 23 products.
Products include Qualcomm Aqt1000 Firmware, Qualcomm Qca1062 Firmware, Qualcomm Qca1064 Firmware, Qualcomm Qca2066 Firmware, Qualcomm Qca6320 Firmware, Qualcomm Qca6391 Firmware and 17 more.
How do I fix CVE-2021-30321?
No fix has been published for CVE-2021-30321 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-2021-30321 being exploited?
There is no known exploitation of CVE-2021-30321 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-v269-87cf-4phh.