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vuln-cve/data/2026/46xxx/CVE-2026-46172.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-46172",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-05-13T15:03:33.103Z",
"datePublished": "2026-05-28T09:36:26.926Z",
"dateUpdated": "2026-11-10T12:47:19.393Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-06-14T18:00:01.373Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: xfrm6: release dst on error in xfrm6_rcv_encap()\n\nxfrm6_rcv_encap() performs an IPv6 route lookup when the skb does not\nalready have a dst attached. ip6_route_input_lookup() returns a\nreferenced dst entry even when the lookup resolves to an error route.\n\nIf dst->error is set, xfrm6_rcv_encap() drops the skb without attaching\nthe dst to the skb and without releasing the reference returned by the\nlookup. Repeated packets hitting this path therefore leak dst entries.\n\nRelease the dst before jumping to the drop path."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/ipv6/xfrm6_protocol.c"
],
"versions": [
{
"version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7",
"lessThan": "a0721bcd72641c32b281f227a94505b31cf54117",
"status": "affected",
"versionType": "git"
},
{
"version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7",
"lessThan": "a20b34f6e854fe6f2aa82528fae7a88759919eb4",
"status": "affected",
"versionType": "git"
},
{
"version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7",
"lessThan": "870560015ce6e0d8f841c6a8aba33c44be52c727",
"status": "affected",
"versionType": "git"
},
{
"version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7",
"lessThan": "c2efc4956981066df2fef1cc77391b523db6d8e4",
"status": "affected",
"versionType": "git"
},
{
"version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7",
"lessThan": "554c9b090c8ac5b1c5c507f4badf8d5d0c9c6e13",
"status": "affected",
"versionType": "git"
},
{
"version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7",
"lessThan": "9d5047782f9bd2829e529df69209bf3232eb561f",
"status": "affected",
"versionType": "git"
},
{
"version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7",
"lessThan": "6a5eec0a2a0e99ec9743cf8f1c4082178811d90a",
"status": "affected",
"versionType": "git"
},
{
"version": "0146dca70b877b73c5fd9c67912b8a0ca8a7bac7",
"lessThan": "bc0fcb9823cd0894934cf968b525c575833d7078",
"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/ipv6/xfrm6_protocol.c"
],
"versions": [
{
"version": "5.8",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.8",
"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": "6.6.140",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.88",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.30",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.0.7",
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.1",
"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": "5.8",
"versionEndExcluding": "5.10.258"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.8",
"versionEndExcluding": "5.15.209"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.8",
"versionEndExcluding": "6.1.175"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.8",
"versionEndExcluding": "6.6.140"
},
{
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"versionStartIncluding": "5.8",
"versionEndExcluding": "6.12.88"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.8",
"versionEndExcluding": "6.18.30"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.8",
"versionEndExcluding": "7.0.7"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.8",
"versionEndExcluding": "7.1"
}
]
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]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/a0721bcd72641c32b281f227a94505b31cf54117"
},
{
"url": "https://git.kernel.org/stable/c/a20b34f6e854fe6f2aa82528fae7a88759919eb4"
},
{
"url": "https://git.kernel.org/stable/c/870560015ce6e0d8f841c6a8aba33c44be52c727"
},
{
"url": "https://git.kernel.org/stable/c/c2efc4956981066df2fef1cc77391b523db6d8e4"
},
{
"url": "https://git.kernel.org/stable/c/554c9b090c8ac5b1c5c507f4badf8d5d0c9c6e13"
},
{
"url": "https://git.kernel.org/stable/c/9d5047782f9bd2829e529df69209bf3232eb561f"
},
{
"url": "https://git.kernel.org/stable/c/6a5eec0a2a0e99ec9743cf8f1c4082178811d90a"
},
{
"url": "https://git.kernel.org/stable/c/bc0fcb9823cd0894934cf968b525c575833d7078"
}
],
"title": "ipv6: xfrm6: release dst on error in xfrm6_rcv_encap()",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"x_adpType": "supplier",
"providerMetadata": {
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP",
"dateUpdated": "2026-11-10T12:47:19.393Z"
},
"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"
},
{
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"metrics": [
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"content": {
"id": "CVE-2026-46172",
"role": "CISA Coordinator",
"options": [
{
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},
{
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},
{
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}
],
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"timestamp": "2026-11-06T16:11:10.477320Z"
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