310 lines
14 KiB
JSON
310 lines
14 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-53181",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-06-09T07:44:35.390Z",
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"datePublished": "2026-06-25T08:38:55.994Z",
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"dateUpdated": "2026-11-06T16:24:06.419Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-06-25T08:38:55.994Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/vmci: fix sk_ack_backlog leak on failed handshake\n\nWhen vmci_transport_recv_connecting_server() returns an error,\nvmci_transport_recv_listen() calls vsock_remove_pending() but never\ncalls sk_acceptq_removed(). This leaves sk_ack_backlog incremented\npermanently.\n\nRepeated handshake failures (malformed packets, queue pair alloc\nfailure, event subscribe failure) cause sk_ack_backlog to climb\ntoward sk_max_ack_backlog. Once it reaches the limit the listener\npermanently refuses all new connections with -ECONNREFUSED, a\nsilent denial of service requiring a process restart to recover.\n\nThe two existing sk_acceptq_removed() calls in af_vsock.c do not\ncover this path: line 764 checks vsock_is_pending() which returns\nfalse after vsock_remove_pending(), and line 1889 is only reached\non successful accept().\n\nFix by balancing sk_acceptq_added() with sk_acceptq_removed() on\nthe error path."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/vmw_vsock/vmci_transport.c"
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],
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"versions": [
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{
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"version": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "22c587aa3ab1ab5264daff3ec32136fd30436c13",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "cf7090e255d74c4b61c51f8ede9fcacdd8393b5b",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "ea0b03d52881c12a8c634ea0d6cbfa61cefdb488",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "dfd853197615d322d3a88dbcab91fc0fd2096219",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "bcb275626055df7f8f947f1a349754b4004d9a15",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "ba9ad6015937a5e46ba1a31370e3efdec8abbdcc",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "9698582a4dd9c4a05889d7db96d4c0edc9e69cac",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "c05fa14db43ebef3bd862ca9d073981c0358b3f0",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/vmw_vsock/vmci_transport.c"
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],
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"versions": [
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{
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"version": "3.9",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "3.9",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.259",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.210",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.176",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.143",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.94",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.36",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0.13",
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"lessThanOrEqual": "7.0.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.9",
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"versionEndExcluding": "5.10.259"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.9",
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"versionEndExcluding": "5.15.210"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.9",
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"versionEndExcluding": "6.1.176"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.9",
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"versionEndExcluding": "6.6.143"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.9",
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"versionEndExcluding": "6.12.94"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.9",
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"versionEndExcluding": "6.18.36"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.9",
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"versionEndExcluding": "7.0.13"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.9",
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"versionEndExcluding": "7.1"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/22c587aa3ab1ab5264daff3ec32136fd30436c13"
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},
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{
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"url": "https://git.kernel.org/stable/c/cf7090e255d74c4b61c51f8ede9fcacdd8393b5b"
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},
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{
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"url": "https://git.kernel.org/stable/c/ea0b03d52881c12a8c634ea0d6cbfa61cefdb488"
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},
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{
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"url": "https://git.kernel.org/stable/c/dfd853197615d322d3a88dbcab91fc0fd2096219"
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},
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{
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"url": "https://git.kernel.org/stable/c/bcb275626055df7f8f947f1a349754b4004d9a15"
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},
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{
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"url": "https://git.kernel.org/stable/c/ba9ad6015937a5e46ba1a31370e3efdec8abbdcc"
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},
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{
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"url": "https://git.kernel.org/stable/c/9698582a4dd9c4a05889d7db96d4c0edc9e69cac"
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},
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{
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"url": "https://git.kernel.org/stable/c/c05fa14db43ebef3bd862ca9d073981c0358b3f0"
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}
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],
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"title": "vsock/vmci: fix sk_ack_backlog leak on failed handshake",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"x_adpType": "supplier",
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"providerMetadata": {
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"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
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"shortName": "siemens-SADP",
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"dateUpdated": "2026-10-15T01:22:34.587Z"
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},
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"affected": [
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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}
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],
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"references": [
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{
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"url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
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}
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]
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},
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-53181",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-06T16:21:51.750537Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-06T16:24:06.419Z"
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}
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}
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]
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}
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} |