CVE-2026-43028 (GCVE-0-2026-43028)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-05-03 05:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 Version: c38c4597e4bf3e99860eac98211748e1ecb0e139 |
||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/netfilter/xt_cgroup.c",
"net/netfilter/xt_rateest.c"
],
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"vendor": "Linux",
"versions": [
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},
{
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"net/netfilter/xt_rateest.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.5"
},
{
"lessThan": "4.5",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.253",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.203",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.168",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.134",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.81",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.22",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"version": "6.19.12",
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},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
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"vulnerable": true
},
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: x_tables: ensure names are nul-terminated\n\nReject names that lack a \\0 character before feeding them\nto functions that expect c-strings.\n\nFixes tag is the most recent commit that needs this change."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.1,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-03T05:46:10.438Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/bcac50ea0a29d430eedc5ac87b215393b567baa9"
},
{
"url": "https://git.kernel.org/stable/c/ea01c1b219f5a11c66918abaa6f052e5a74041d6"
},
{
"url": "https://git.kernel.org/stable/c/aa6cd4a8863391e0a64f62d8922cb0af732a2cf2"
},
{
"url": "https://git.kernel.org/stable/c/c2d4a3abb15ca14716c6d8b9ffcbcd7c63626af4"
},
{
"url": "https://git.kernel.org/stable/c/673bbd36cba21d10a10f0932f479df7468e26fbb"
},
{
"url": "https://git.kernel.org/stable/c/f419bdc205894750f4d3ec042bc87a1b9cde1351"
},
{
"url": "https://git.kernel.org/stable/c/73124608172890306b85f2206d8b3cac20e324f1"
},
{
"url": "https://git.kernel.org/stable/c/a958a4f90ddd7de0800b33ca9d7b886b7d40f74e"
}
],
"title": "netfilter: x_tables: ensure names are nul-terminated",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-43028",
"datePublished": "2026-05-01T14:15:29.192Z",
"dateReserved": "2026-05-01T14:12:55.976Z",
"dateUpdated": "2026-05-03T05:46:10.438Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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