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vuln-cve/data/2025/39xxx/CVE-2025-39812.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-39812",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-04-16T07:20:57.137Z",
"datePublished": "2025-09-16T13:00:14.103Z",
"dateUpdated": "2026-05-12T12:07:13.590Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T21:36:49.762Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: initialize more fields in sctp_v6_from_sk()\n\nsyzbot found that sin6_scope_id was not properly initialized,\nleading to undefined behavior.\n\nClear sin6_scope_id and sin6_flowinfo.\n\nBUG: KMSAN: uninit-value in __sctp_v6_cmp_addr+0x887/0x8c0 net/sctp/ipv6.c:649\n __sctp_v6_cmp_addr+0x887/0x8c0 net/sctp/ipv6.c:649\n sctp_inet6_cmp_addr+0x4f2/0x510 net/sctp/ipv6.c:983\n sctp_bind_addr_conflict+0x22a/0x3b0 net/sctp/bind_addr.c:390\n sctp_get_port_local+0x21eb/0x2440 net/sctp/socket.c:8452\n sctp_get_port net/sctp/socket.c:8523 [inline]\n sctp_listen_start net/sctp/socket.c:8567 [inline]\n sctp_inet_listen+0x710/0xfd0 net/sctp/socket.c:8636\n __sys_listen_socket net/socket.c:1912 [inline]\n __sys_listen net/socket.c:1927 [inline]\n __do_sys_listen net/socket.c:1932 [inline]\n __se_sys_listen net/socket.c:1930 [inline]\n __x64_sys_listen+0x343/0x4c0 net/socket.c:1930\n x64_sys_call+0x271d/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:51\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nLocal variable addr.i.i created at:\n sctp_get_port net/sctp/socket.c:8515 [inline]\n sctp_listen_start net/sctp/socket.c:8567 [inline]\n sctp_inet_listen+0x650/0xfd0 net/sctp/socket.c:8636\n __sys_listen_socket net/socket.c:1912 [inline]\n __sys_listen net/socket.c:1927 [inline]\n __do_sys_listen net/socket.c:1932 [inline]\n __se_sys_listen net/socket.c:1930 [inline]\n __x64_sys_listen+0x343/0x4c0 net/socket.c:1930"
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/sctp/ipv6.c"
],
"versions": [
{
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"lessThan": "45e4b36593edffb7bbee5828ae820bc10a9fa0f3",
"status": "affected",
"versionType": "git"
},
{
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"lessThan": "9546934c2054bba1bd605c44e936619159a34027",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"lessThan": "17d6c7747045e9b802c2f5dfaba260d309d831ae",
"status": "affected",
"versionType": "git"
},
{
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},
{
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},
{
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"status": "affected",
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},
{
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"lessThan": "f6c2cc99fc2387ba6499facd6108f6543382792d",
"status": "affected",
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},
{
"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"lessThan": "2e8750469242cad8f01f320131fd5a6f540dbb99",
"status": "affected",
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}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/sctp/ipv6.c"
],
"versions": [
{
"version": "2.6.12",
"status": "affected"
},
{
"version": "0",
"lessThan": "2.6.12",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.298",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.242",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.191",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.150",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.104",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.45",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.16.5",
"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": "2.6.12",
"versionEndExcluding": "5.4.298"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
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},
{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "6.12.45"
},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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}
]
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]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/45e4b36593edffb7bbee5828ae820bc10a9fa0f3"
},
{
"url": "https://git.kernel.org/stable/c/9546934c2054bba1bd605c44e936619159a34027"
},
{
"url": "https://git.kernel.org/stable/c/17d6c7747045e9b802c2f5dfaba260d309d831ae"
},
{
"url": "https://git.kernel.org/stable/c/65b4693d8bab5370cfcb44a275b4d8dcb06e56bf"
},
{
"url": "https://git.kernel.org/stable/c/463aa96fca6209bb205f49f7deea3817d7ddaa3a"
},
{
"url": "https://git.kernel.org/stable/c/1bbc0c02aea1f1c405bd1271466889c25a1fe01b"
},
{
"url": "https://git.kernel.org/stable/c/f6c2cc99fc2387ba6499facd6108f6543382792d"
},
{
"url": "https://git.kernel.org/stable/c/2e8750469242cad8f01f320131fd5a6f540dbb99"
}
],
"title": "sctp: initialize more fields in sctp_v6_from_sk()",
"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": "2025-11-03T17:43:36.526Z"
}
},
{
"x_adpType": "supplier",
"providerMetadata": {
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP",
"dateUpdated": "2026-05-12T12:07:13.590Z"
},
"affected": [
{
"vendor": "Siemens",
"product": "SIMATIC CN 4100",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "V5.0",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
],
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
}
]
}
]
}
}
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