CVE-2022-50297Public exploit

Kernel service interrupt via unchecked USB endpoints

Published Sep 15, 2025 · Updated Sep 15, 2025

Improper endpoint validation in the Linux ath9k USB driver allows local users to interrupt kernel service via crafted USB descriptors. The ath9k_hif_usb_probe function allocates URBs for fixed pipe numbers without verifying that the current interface provides the required bulk and interrupt endpoints. Exploitation requires local access capable of presenting a device with a matching identity and malformed endpoints; the demonstrated result is an internal kernel error and availability loss.

CVSS severity5.5
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper endpoint validation in the Linux ath9k USB driver allows local users to interrupt kernel service via crafted USB descriptors. The ath9k_hif_usb_probe function allocates URBs for fixed pipe numbers without verifying that the current interface provides the required bulk and interrupt endpoints. Exploitation requires local access capable of presenting a device with a matching identity and malformed endpoints; the demonstrated result is an internal kernel error and availability loss.

The record

CVE
CVE-2022-50297
Published
Sep 15, 2025
Updated
Sep 15, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0b7e6d681e00a96cde2b32a15ffa70e1be2e3209
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <16ef02bad239f11f322df8425d302be62f0443ce
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1824ccabee5445347b83642e4087cc2eca070343
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2d2eccf52ea0215c8d386b62af0b5fd4fc122bd5
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <932f0a5e829fb0b823f96d7fa9a0f4fc96660b77
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c319196a0e34ed2e66d6f876f58d8d446335c2a7
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ca57748593ddd8e46d033fbaeb9d01ec533a6bfe
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d008a202a0528a058bac658e657c010ce8534f4a
  9. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d64436af0bc3c9e579be761d7684f228fb95f3bb

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0b7e6d681e00a96cde2b32a15ffa70e1be2e3209; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <16ef02bad239f11f322df8425d302be62f0443ce; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1824ccabee5445347b83642e4087cc2eca070343; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2d2eccf52ea0215c8d386b62af0b5fd4fc122bd5; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <932f0a5e829fb0b823f96d7fa9a0f4fc96660b77; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c319196a0e34ed2e66d6f876f58d8d446335c2a7; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ca57748593ddd8e46d033fbaeb9d01ec533a6bfe; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d008a202a0528a058bac658e657c010ce8534f4a; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d64436af0bc3c9e579be761d7684f228fb95f3bb

Published CVSS scores

7.0Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
4.4SUSECVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499.004Endpoint Denial of Service Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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