CVE-2026-43028

netfilter: x_tables: ensure names are nul-terminated

State: Published
Severity: 7.1 High
Published: May 1, 2026
Updated: Oct 19, 2026
Reserved: May 1, 2026

Read the record on cve.org

Description

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

netfilter: x_tables: 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.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H	Linux

Weaknesses

CWE-170 Improper Null Termination

Affected Products

Product	Versions
LinuxLinux	c38c4597e4bf3e99860eac98211748e1ecb0e139 to before bcac50ea0a29d430eedc5ac87b215393b567baa9Affected c38c4597e4bf3e99860eac98211748e1ecb0e139 to before ea01c1b219f5a11c66918abaa6f052e5a74041d6Affected c38c4597e4bf3e99860eac98211748e1ecb0e139 to before aa6cd4a8863391e0a64f62d8922cb0af732a2cf2Affected c38c4597e4bf3e99860eac98211748e1ecb0e139 to before c2d4a3abb15ca14716c6d8b9ffcbcd7c63626af4Affected c38c4597e4bf3e99860eac98211748e1ecb0e139 to before 673bbd36cba21d10a10f0932f479df7468e26fbbAffected c38c4597e4bf3e99860eac98211748e1ecb0e139 to before f419bdc205894750f4d3ec042bc87a1b9cde1351Affected c38c4597e4bf3e99860eac98211748e1ecb0e139 to before 73124608172890306b85f2206d8b3cac20e324f1Affected c38c4597e4bf3e99860eac98211748e1ecb0e139 to before a958a4f90ddd7de0800b33ca9d7b886b7d40f74eAffected
LinuxLinux	4.5Affected before 4.5Not affected 5.10.253 through 5.10.Not affected 5.15.203 through 5.15.Not affected 6.1.168 through 6.1.Not affected 6.6.134 through 6.6.Not affected 6.12.81 through 6.12.Not affected 6.18.22 through 6.18.Not affected 6.19.12 through 6.19.*Not affected 7.0 and laterNot affected

Product

Versions

LinuxLinux

c38c4597e4bf3e99860eac98211748e1ecb0e139 to before bcac50ea0a29d430eedc5ac87b215393b567baa9Affected
c38c4597e4bf3e99860eac98211748e1ecb0e139 to before ea01c1b219f5a11c66918abaa6f052e5a74041d6Affected
c38c4597e4bf3e99860eac98211748e1ecb0e139 to before aa6cd4a8863391e0a64f62d8922cb0af732a2cf2Affected
c38c4597e4bf3e99860eac98211748e1ecb0e139 to before c2d4a3abb15ca14716c6d8b9ffcbcd7c63626af4Affected
c38c4597e4bf3e99860eac98211748e1ecb0e139 to before 673bbd36cba21d10a10f0932f479df7468e26fbbAffected
c38c4597e4bf3e99860eac98211748e1ecb0e139 to before f419bdc205894750f4d3ec042bc87a1b9cde1351Affected
c38c4597e4bf3e99860eac98211748e1ecb0e139 to before 73124608172890306b85f2206d8b3cac20e324f1Affected
c38c4597e4bf3e99860eac98211748e1ecb0e139 to before a958a4f90ddd7de0800b33ca9d7b886b7d40f74eAffected

LinuxLinux

4.5Affected
before 4.5Not affected
5.10.253 through 5.10.*Not affected
5.15.203 through 5.15.*Not affected
6.1.168 through 6.1.*Not affected
6.6.134 through 6.6.*Not affected
6.12.81 through 6.12.*Not affected
6.18.22 through 6.18.*Not affected
6.19.12 through 6.19.*Not affected
7.0 and laterNot affected

References

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