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vuln-cve/data/2025/38xxx/CVE-2025-38732.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-38732",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-04-16T04:51:24.033Z",
"datePublished": "2025-09-05T17:20:31.934Z",
"dateUpdated": "2026-11-10T12:36:42.240Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T21:33:54.815Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_reject: don't leak dst refcount for loopback packets\n\nrecent patches to add a WARN() when replacing skb dst entry found an\nold bug:\n\nWARNING: include/linux/skbuff.h:1165 skb_dst_check_unset include/linux/skbuff.h:1164 [inline]\nWARNING: include/linux/skbuff.h:1165 skb_dst_set include/linux/skbuff.h:1210 [inline]\nWARNING: include/linux/skbuff.h:1165 nf_reject_fill_skb_dst+0x2a4/0x330 net/ipv4/netfilter/nf_reject_ipv4.c:234\n[..]\nCall Trace:\n nf_send_unreach+0x17b/0x6e0 net/ipv4/netfilter/nf_reject_ipv4.c:325\n nft_reject_inet_eval+0x4bc/0x690 net/netfilter/nft_reject_inet.c:27\n expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]\n ..\n\nThis is because blamed commit forgot about loopback packets.\nSuch packets already have a dst_entry attached, even at PRE_ROUTING stage.\n\nInstead of checking hook just check if the skb already has a route\nattached to it."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/ipv4/netfilter/nf_reject_ipv4.c",
"net/ipv6/netfilter/nf_reject_ipv6.c"
],
"versions": [
{
"version": "f53b9b0bdc59c0823679f2e3214e0d538f5951b9",
"lessThan": "7b8b503c06274ef3c6c1a107743f1ec0d0a53ef8",
"status": "affected",
"versionType": "git"
},
{
"version": "f53b9b0bdc59c0823679f2e3214e0d538f5951b9",
"lessThan": "82ef97abf22790182f7d433c74960dfd61b99c33",
"status": "affected",
"versionType": "git"
},
{
"version": "f53b9b0bdc59c0823679f2e3214e0d538f5951b9",
"lessThan": "b7a885ba25960c91db237c3f83b4285156789bce",
"status": "affected",
"versionType": "git"
},
{
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"lessThan": "a0a3ace2a57887dac1e7c9a724846040c3e31868",
"status": "affected",
"versionType": "git"
},
{
"version": "f53b9b0bdc59c0823679f2e3214e0d538f5951b9",
"lessThan": "51e8531371f90bee742c63775c9a568e5d6bf3c5",
"status": "affected",
"versionType": "git"
},
{
"version": "f53b9b0bdc59c0823679f2e3214e0d538f5951b9",
"lessThan": "b32e1590a8d22cf7d7f965e46d5576051acf8e42",
"status": "affected",
"versionType": "git"
},
{
"version": "f53b9b0bdc59c0823679f2e3214e0d538f5951b9",
"lessThan": "91a79b792204313153e1bdbbe5acbfc28903b3a5",
"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/ipv4/netfilter/nf_reject_ipv4.c",
"net/ipv6/netfilter/nf_reject_ipv6.c"
],
"versions": [
{
"version": "5.9",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.9",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.241",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.190",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.149",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.103",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.44",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.16.4",
"lessThanOrEqual": "6.16.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.17",
"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": "5.9",
"versionEndExcluding": "5.10.241"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.9",
"versionEndExcluding": "5.15.190"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.9",
"versionEndExcluding": "6.1.149"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.9",
"versionEndExcluding": "6.6.103"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.9",
"versionEndExcluding": "6.12.44"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.9",
"versionEndExcluding": "6.16.4"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.9",
"versionEndExcluding": "6.17"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/7b8b503c06274ef3c6c1a107743f1ec0d0a53ef8"
},
{
"url": "https://git.kernel.org/stable/c/82ef97abf22790182f7d433c74960dfd61b99c33"
},
{
"url": "https://git.kernel.org/stable/c/b7a885ba25960c91db237c3f83b4285156789bce"
},
{
"url": "https://git.kernel.org/stable/c/a0a3ace2a57887dac1e7c9a724846040c3e31868"
},
{
"url": "https://git.kernel.org/stable/c/51e8531371f90bee742c63775c9a568e5d6bf3c5"
},
{
"url": "https://git.kernel.org/stable/c/b32e1590a8d22cf7d7f965e46d5576051acf8e42"
},
{
"url": "https://git.kernel.org/stable/c/91a79b792204313153e1bdbbe5acbfc28903b3a5"
}
],
"title": "netfilter: nf_reject: don't leak dst refcount for loopback packets",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"title": "CVE Program Container",
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
}
],
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2025-11-03T17:42:03.823Z"
}
},
{
"x_adpType": "supplier",
"providerMetadata": {
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP",
"dateUpdated": "2026-11-10T12:36:42.240Z"
},
"affected": [
{
"vendor": "Siemens",
"product": "SIMATIC CN 4100",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "V5.0",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
"versions": [
{
"status": "affected",
"version": "V3.1.6",
"lessThan": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"vendor": "Siemens",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
"versions": [
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"version": "V3.1.7",
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{
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}
],
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{
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],
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{
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"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
}
]
},
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2025-38732",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-11-05T21:08:22.016804Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-05T21:12:54.707Z"
}
}
]
}
}
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