Vulnerabilities CVE-2026-43454

CVE-2026-43454

High

Open

TLP:CLEAR

netfilter: nf_tables: Fix for duplicate device in netdev hooks

NVD CVE.org

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Description

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.

Details

CVSS Score: 7.8
EPSS Score ⓘ: 0.12%

2.1th percentile
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Confidence: 90%
Published: May 8, 2026
Last Modified: Aug 5, 2026

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