CVE-2023-53226 wifi: mwifiex: Fix OOB and integer underflow when rx packets
An integer underflow in the mwifiex Wi-Fi driver allows out-of-bounds memory access, potentially leading to code execution or system crashes.
- 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-2023-53226?
CVE-2023-53226 is a high-severity vulnerability in Linux kernel, published on 15 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mwifiex: Fix OOB and integer underflow when rx packets
Make sure mwifiex_process_mgmt_packet, mwifiex_process_sta_rx_packet and mwifiex_process_uap_rx_packet, mwifiex_uap_queue_bridged_pkt and mwifiex_process_rx_packet not out-of-bounds access the skb->data buffer.
Weakness: CWE-191
Which versions are affected by CVE-2023-53226?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-53226?
Apply the vendor's patch.
Is CVE-2023-53226 being exploited?
There is no known exploitation of CVE-2023-53226 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-53226, DEBIAN-CVE-2023-53226, GHSA-9w8v-7p4r-hqf4, UBUNTU-CVE-2023-53226.