VDB

CVE-2026-43028

CVE-2026-43028 PUBLISHED CVSS 7.1 HIGH

netfilter: x_tables: ensure names are nul-terminated

Reported by linux · Published May 1, 2026

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.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
kernelAmazon Linux1:6.1.168-202.320.amzn2023
python3-perf6.12Amazon Linux1:6.12.83-113.160.amzn2023
perf6.12Amazon Linux1:6.12.83-113.160.amzn2023
kernel6.12-tools-develAmazon Linux1:6.12.83-113.160.amzn2023
kernel6.18-headersAmazon Linux1:6.18.25-52.107.amzn2023
perfAmazon Linux1:6.1.168-202.320.amzn2023
kernel-libbpf-staticAmazon Linux1:6.1.168-202.320.amzn2023
kernel-develAmazon Linux1:6.1.168-202.320.amzn2023
bpftool6.18Amazon Linux1:6.18.25-52.107.amzn2023
kernel6.12-modules-extra-commonAmazon Linux1:6.12.83-113.160.amzn2023
perf6.18Amazon Linux1:6.18.25-52.107.amzn2023
kernel6.12-toolsAmazon Linux1:6.12.83-113.160.amzn2023

5 more packages have a fixed version. See every fix in Lookup.

Risk scores

CVSS 3.1
7.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Affected products

VendorProductVersions
LinuxLinuxc38c4597e4bf3e99860eac98211748e1ecb0e139, c38c4597e4bf3e99860eac98211748e1ecb0e139, c38c4597e4bf3e99860eac98211748e1ecb0e139
LinuxLinux4.5, 0, 5.10.253
amazon:2023kernel0
amazon:2023python3-perf6.120
amazon:2023perf6.120
amazon:2023kernel6.12-tools-devel0
amazon:2023kernel6.18-headers0
amazon:2023perf0
amazon:2023kernel-libbpf-static0
amazon:2023kernel-devel0
amazon:2023bpftool6.180
amazon:2023kernel6.12-modules-extra-common0
amazon:2023perf6.180
amazon:2023kernel6.12-tools0
amazon:2023python3-perf0
amazon:2023bpftool0
amazon:2023kernel6.18-tools-devel0
amazon:2023kernel-tools-devel0
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP3.1.5, 3.1.7, 3.1.6
linuxlinux_kernel4.5, 4.5, 4.5

…and 23 more

Timeline

  • May 1, 2026 CVE Published
  • May 18, 2026 EPSS Score (25 in total, the first dated here)
  • Jun 2, 2026 Security Advisory (120 in total, the first dated here)
  • Jul 28, 2026 Coalition ESS Score
  • Aug 11, 2026 Distribution Patch (114 in total, the first dated here)

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2026-43028
vulnetix vdb fixes CVE-2026-43028

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-43028/fixes/registry"

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References

Look up in the Resolve Platform →
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