CVE-2026-43454

High · 7.8

CVSS

7.8

EPSS

0.1%

Published

May 8, 2026

CISA due date

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The record

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix for duplicate device in netdev hooks When handling NETDEV_REGISTER notification, duplicate device registration must be avoided since the device may have been added by nft_netdev_hook_alloc() already when creating the hook.

Affected packages

Ecosystem	Package	Introduced	Fixed