VLAN Encapsulation Flaw in Linux Kernel Networking Stack
CVE-2026-23003

Currently unrated

Key Information:

Vendor: Linux
Status: Linux
Vendor: CVE Published:; 25 January 2026

What is CVE-2026-23003?

A vulnerability within the Linux kernel's networking stack related to improper handling of VLAN encapsulations has been identified. The issue arose from the use of an incorrect function for packet processing, leading to uninitialized memory situations that can affect network communication. This vulnerability could potentially allow attackers to exploit the networking functionality in devices running affected versions of the kernel. Users are advised to update their systems promptly to mitigate potential risks associated with this flaw.

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