CVE-2025-39757 Affecting kernel-rt-modules package, versions <0:5.14.0-570.52.1.el9_6


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.05% (15th percentile)

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  • Snyk IDSNYK-ALMALINUX9-KERNELRTMODULES-13606600
  • published17 Oct 2025
  • disclosed13 Oct 2025

Introduced: 13 Oct 2025

NewCVE-2025-39757  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 kernel-rt-modules to version 0:5.14.0-570.52.1.el9_6 or higher.
This issue was patched in ALSA-2025:17760.

NVD Description

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

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

ALSA: usb-audio: Validate UAC3 cluster segment descriptors

UAC3 class segment descriptors need to be verified whether their sizes match with the declared lengths and whether they fit with the allocated buffer sizes, too. Otherwise malicious firmware may lead to the unexpected OOB accesses.

CVSS Base Scores

version 3.1