CVE-2026-43028netfilter: x_tables: ensure names are nul-terminated
Updated under an hour ago ()
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It affects Linux and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from c38c4597e4bf3e99860eac98211748e1ecb0e139 before bcac50ea0a29d430eedc5ac87b215393b567baa9; from c38c4597e4bf3e99860eac98211748e1ecb0e139 before ea01c1b219f5a11c66918abaa6f052e5a74041d6; from c38c4597e4bf3e99860eac98211748e1ecb0e139 before aa6cd4a8863391e0a64f62d8922cb0af732a2cf2; from c38c4597e4bf3e99860eac98211748e1ecb0e139 before c2d4a3abb15ca14716c6d8b9ffcbcd7c63626af4; from c38c4597e4bf3e99860eac98211748e1ecb0e139 before 673bbd36cba21d10a10f0932f479df7468e26fbb; from c38c4597e4bf3e99860eac98211748e1ecb0e139 before f419bdc205894750f4d3ec042bc87a1b9cde1351; from c38c4597e4bf3e99860eac98211748e1ecb0e139 before 73124608172890306b85f2206d8b3cac20e324f1; from c38c4597e4bf3e99860eac98211748e1ecb0e139 before a958a4f90ddd7de0800b33ca9d7b886b7d40f74e | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 4.5 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.168; from 6.2 before 6.6.134; from 6.7 before 6.12.81; from 6.13 before 6.18.22; from 6.19 before 6.19.12; 7.0; and 5 more ranges | NVD |
References
- https://git.kernel.org/stable/c/bcac50ea0a29d430eedc5ac87b215393b567baa9patch
- https://git.kernel.org/stable/c/ea01c1b219f5a11c66918abaa6f052e5a74041d6patch
- https://git.kernel.org/stable/c/aa6cd4a8863391e0a64f62d8922cb0af732a2cf2patch
- https://git.kernel.org/stable/c/c2d4a3abb15ca14716c6d8b9ffcbcd7c63626af4patch
- https://git.kernel.org/stable/c/673bbd36cba21d10a10f0932f479df7468e26fbbpatch
- https://git.kernel.org/stable/c/f419bdc205894750f4d3ec042bc87a1b9cde1351patch
- https://git.kernel.org/stable/c/73124608172890306b85f2206d8b3cac20e324f1patch
- https://git.kernel.org/stable/c/a958a4f90ddd7de0800b33ca9d7b886b7d40f74epatch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.