What’s Vulnerable › Vulnerabilities

CVE-2023-53226: wifi: mwifiex: Fix OOB and integer underflow when rx packets

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-15 · updated 2026-08-04
• Weakness: CWE-191

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.

Affected products

• Linux kernel: from 3.7 before 4.14.326; from 4.15 before 4.19.295; from 4.20 before 5.4.257; from 5.5 before 5.10.195; from 5.11 before 5.15.132; from 5.16 before 6.1.53 — fixed in 4.14.326, 4.19.295, 5.10.195, 5.15.132, 5.4.257, 6.1.53

How to fix

Upgrade to a fixed version: Linux kernel 4.14.326, 4.19.295, 5.10.195, 5.15.132. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/11958528161731c58e105b501ed60b83a91ea941
• https://git.kernel.org/stable/c/29eca8b7863d1d7de6c5b746b374e3487d14f154
• https://git.kernel.org/stable/c/3975e21d4d01efaf0296ded40d11c06589c49245
• https://git.kernel.org/stable/c/3fe3923d092e22d87d1ed03e2729db444b8c1331
• https://git.kernel.org/stable/c/650d1bc02fba7b42f476d8b6643324abac5921ed
• https://git.kernel.org/stable/c/7c54b6fc39eb1aac51cf2945f8a25e2a47fdca02
• https://git.kernel.org/stable/c/8824aa4ab62c800f75d96f48e1883a5f56ec5869
• https://git.kernel.org/stable/c/a7300e3800e9fd5405e88ce67709c1a97783b9c8
• https://git.kernel.org/stable/c/f517c97fc129995de77dd06aa5a74f909ebf568f

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