CVE-2026-43454

netfilter: nf_tables: Fix for duplicate device in netdev hooks

High · published May 8, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
1.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00119 · 1.7th percentile
Published
2026-05-08T14:22Z
EPSS history
Timeline
  • 08 MAY 14:22Z
    netfilter: nf_tables: Fix for duplicate device in netdev hooks
    cvelistv5