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vuln-cve/data/2026/43xxx/CVE-2026-43089.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-43089",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-05-01T14:12:55.984Z",
"datePublished": "2026-05-06T07:40:22.630Z",
"dateUpdated": "2026-11-10T12:46:33.642Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-06-01T16:14:29.152Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm_user: fix info leak in build_mapping()\n\nstruct xfrm_usersa_id has a one-byte padding hole after the proto\nfield, which ends up never getting set to zero before copying out to\nuserspace. Fix that up by zeroing out the whole structure before\nsetting individual variables."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/xfrm/xfrm_user.c"
],
"versions": [
{
"version": "3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4",
"lessThan": "521385cbd50ca9474396d88462fcdfa6489685d9",
"status": "affected",
"versionType": "git"
},
{
"version": "3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4",
"lessThan": "c2779ae9a3e5a044e5ccd564681511bbbcc5fc0f",
"status": "affected",
"versionType": "git"
},
{
"version": "3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4",
"lessThan": "72a8de41c3eb4dcf22bf3b674ea38fb2f75d6f32",
"status": "affected",
"versionType": "git"
},
{
"version": "3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4",
"lessThan": "d3125c541a96fb3c0fc7210112684baf22b6c24d",
"status": "affected",
"versionType": "git"
},
{
"version": "3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4",
"lessThan": "5a1a4b049ddde41466ccac0daeec326254b133f2",
"status": "affected",
"versionType": "git"
},
{
"version": "3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4",
"lessThan": "f779a6b6cdb6e12baa0663063ac59ab2a8f20c0c",
"status": "affected",
"versionType": "git"
},
{
"version": "3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4",
"lessThan": "700c9622b23c33b5933e6dcea816492c064e4e10",
"status": "affected",
"versionType": "git"
},
{
"version": "3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4",
"lessThan": "1beb76b2053b68c491b78370794b8ff63c8f8c02",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/xfrm/xfrm_user.c"
],
"versions": [
{
"version": "2.6.29",
"status": "affected"
},
{
"version": "0",
"lessThan": "2.6.29",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.258",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.209",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.175",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.136",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.83",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.24",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.19.14",
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.0",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.29",
"versionEndExcluding": "5.10.258"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.29",
"versionEndExcluding": "5.15.209"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.29",
"versionEndExcluding": "6.1.175"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.29",
"versionEndExcluding": "6.6.136"
},
{
"vulnerable": true,
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"versionStartIncluding": "2.6.29",
"versionEndExcluding": "6.12.83"
},
{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.29",
"versionEndExcluding": "6.18.24"
},
{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.29",
"versionEndExcluding": "6.19.14"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.29",
"versionEndExcluding": "7.0"
}
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],
"references": [
{
"url": "https://git.kernel.org/stable/c/521385cbd50ca9474396d88462fcdfa6489685d9"
},
{
"url": "https://git.kernel.org/stable/c/c2779ae9a3e5a044e5ccd564681511bbbcc5fc0f"
},
{
"url": "https://git.kernel.org/stable/c/72a8de41c3eb4dcf22bf3b674ea38fb2f75d6f32"
},
{
"url": "https://git.kernel.org/stable/c/d3125c541a96fb3c0fc7210112684baf22b6c24d"
},
{
"url": "https://git.kernel.org/stable/c/5a1a4b049ddde41466ccac0daeec326254b133f2"
},
{
"url": "https://git.kernel.org/stable/c/f779a6b6cdb6e12baa0663063ac59ab2a8f20c0c"
},
{
"url": "https://git.kernel.org/stable/c/700c9622b23c33b5933e6dcea816492c064e4e10"
},
{
"url": "https://git.kernel.org/stable/c/1beb76b2053b68c491b78370794b8ff63c8f8c02"
}
],
"title": "xfrm_user: fix info leak in build_mapping()",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"x_adpType": "supplier",
"providerMetadata": {
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP",
"dateUpdated": "2026-11-10T12:46:33.642Z"
},
"affected": [
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
"versions": [
{
"status": "affected",
"version": "V3.1.7",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
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},
{
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"lessThan": "*",
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}
],
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},
{
"vendor": "Siemens",
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],
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{
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}
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{
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],
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},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
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"version": "0",
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}
],
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"version": "V3.1.7",
"lessThan": "*",
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}
],
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}
],
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
}
]
},
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2026-43089",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-11-06T15:28:21.792883Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
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]
}
}