CVE-2026-43028: netfilter: x_tables: ensure names are nul-terminated

Published May 1, 2026
·
Updated

In the Linux kernel, the following vulnerability has been resolved:

netfilter: xtables: ensure names are nul-terminated

Reject names that lack a \0 character before feeding them to functions that expect c-strings.

Fixes tag is the most recent commit that needs this change.

Affected Software

14 affected components
Linux Linux kernel (netfilter x_tables)
Linux Linux kernel>=4.5<5.10.253
Linux Linux kernel>=5.11<5.15.203
Linux Linux kernel>=5.16<6.1.168
Linux Linux kernel>=6.2<6.6.134
Linux Linux kernel>=6.7<6.12.81
Linux Linux kernel>=6.13<6.18.22
Linux Linux kernel>=6.19<6.19.12
Linux Linux kernel=7.0-rc1
Linux Linux kernel=7.0-rc2
Linux Linux kernel=7.0-rc3
Linux Linux kernel=7.0-rc4
Linux Linux kernel=7.0-rc5
Linux Linux kernel=7.0-rc6

Event History

May 1, 2026
CVE Published
via MITRE·02:15 PM
Data Sourced
via MITRE·02:15 PM
DescriptionSeverity
Data Sourced
via NVD·03:16 PM
RemedyDescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-43028?

CVE-2026-43028 is classified as a moderate severity vulnerability in the Linux kernel.

2

How do I fix CVE-2026-43028?

To fix CVE-2026-43028, update to the latest version of the Linux kernel that includes the required patch.

3

What systems are affected by CVE-2026-43028?

CVE-2026-43028 affects the Linux kernel specifically in the netfilter x_tables component.

4

What impact does CVE-2026-43028 have on system security?

CVE-2026-43028 can potentially lead to unexpected behavior or application crashes if non-null-terminated names are processed.

5

When was CVE-2026-43028 disclosed?

CVE-2026-43028 was disclosed as part of a security fix release for the Linux kernel.

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