CVE-2026-23307 Affecting kernel-uek-modules-wireless package, versions <0:6.12.0-204.92.4.2.el9uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELUEKMODULESWIRELESS-17867410
  • published6 Jul 2026
  • disclosed25 Mar 2026

Introduced: 25 Mar 2026

CVE-2026-23307  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-uek-modules-wireless to version 0:6.12.0-204.92.4.2.el9uek or higher.
This issue was patched in ELSA-2026-50372.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-modules-wireless package and not the kernel-uek-modules-wireless package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

can: ems_usb: ems_usb_read_bulk_callback(): check the proper length of a message

When looking at the data in a USB urb, the actual_length is the size of the buffer passed to the driver, not the transfer_buffer_length which is set by the driver as the max size of the buffer.

When parsing the messages in ems_usb_read_bulk_callback() properly check the size both at the beginning of parsing the message to make sure it is big enough for the expected structure, and at the end of the message to make sure we don't overflow past the end of the buffer for the next message.

CVSS Base Scores

version 3.1