What’s Vulnerable › Vulnerabilities

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

• 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 2026-06-17

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.

Affected products

• Linux kernel: from 2.6.35 before 4.14.322; from 4.15 before 4.19.291; from 4.20 before 5.4.251; from 5.5 before 5.10.188; from 5.11 before 5.15.121; from 5.16 before 6.1.39 — fixed in 4.14.322, 4.19.291, 5.10.188, 5.15.121, 5.4.251, 6.1.39

How to fix

Upgrade to a fixed version: Linux kernel 4.14.322, 4.19.291, 5.10.188, 5.15.121. Check the vendor advisory for mitigations.

References

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

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