CVE-2025-21764 Affecting linux-virt package, versions <6.12.17-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.03% (10th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-MINIMOSLATEST-LINUXVIRT-13324577
  • published6 Oct 2025
  • disclosed27 Feb 2025

Introduced: 27 Feb 2025

CVE-2025-21764  (opens in a new tab)

How to fix?

Upgrade Minimos:latest linux-virt to version 6.12.17-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-virt package and not the linux-virt package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

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

ndisc: use RCU protection in ndisc_alloc_skb()

ndisc_alloc_skb() can be called without RTNL or RCU being held.

Add RCU protection to avoid possible UAF.

CVSS Base Scores

version 3.1