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Vulnerability record · CVE-2026-43454 · published 8 May 2026

CVE-2026-43454: Linux kernel vulnerability

Linux · Linux Kernel

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.

7.8 CVSS 3.1 High EPSS 0.17% · top 94.0%
7.8CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/2041cdb078041611510fc189410bc70b29f688fb Patch
https://git.kernel.org/stable/c/6d2a95c6890577cc3eab2b20018e16850d7fb094 Patch
https://git.kernel.org/stable/c/b7cdc5a97d02c943f4bdde4d5767ad0c13cad92b Patch

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Source: NIST National Vulnerability Database (record CVE-2026-43454), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.