CVE-2026-23040 Affecting kernel-modules-extra-matched package, versions <0:6.12.0-211.7.1.el10_2


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.14% (5th percentile)

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  • Snyk IDSNYK-ALMALINUX10-KERNELMODULESEXTRAMATCHED-17252978
  • published9 Jun 2026
  • disclosed19 May 2026

Introduced: 19 May 2026

CVE-2026-23040  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 kernel-modules-extra-matched to version 0:6.12.0-211.7.1.el10_2 or higher.
This issue was patched in ALSA-2026:18134.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-modules-extra-matched package and not the kernel-modules-extra-matched package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

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

wifi: mac80211_hwsim: fix typo in frequency notification

The NAN notification is for 5745 MHz which corresponds to channel 149 and not 5475 which is not actually a valid channel. This could result in a NULL pointer dereference in cfg80211_next_nan_dw_notif.

CVSS Base Scores

version 3.1