CVE-2023-21656 Improper Input Validation in WLAN HOST
Memory corruption in Qualcomm WLAN HOST allows attackers to execute code or escalate privileges via malicious WMI events.
- 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-2023-21656?
CVE-2023-21656 is a high-severity memory corruption vulnerability in Qualcomm Ar8035 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 WLAN HOST while receiving an WMI event from firmware.
Weakness: CWE-20
Which versions are affected by CVE-2023-21656?
It affects 128 products.
Products include Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Csrb31024 Firmware, Qualcomm Qam8255p Firmware, Qualcomm Qam8295p Firmware and 122 more.
How do I fix CVE-2023-21656?
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-2023-21656 being exploited?
There is no known exploitation of CVE-2023-21656 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Ar8035 Firmware
- CVE-2023-33106 Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset
- CVE-2024-45569 Improper Validation of Array Index in WLAN Host Communication
- CVE-2024-21473 Improper Input Validation in WIN SON
- CVE-2023-28582 Buffer Copy Without Checking Size of Input in Data Modem
- CVE-2023-43552 Use After Free in WLAN Host Communication
Sources
Also known as 3346781, A-271879673, ASB-A-271879673, GHSA-vpj3-j2jm-qp35.