317 lines
15 KiB
JSON
317 lines
15 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-2026-46165",
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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": "2026-05-13T15:03:33.102Z",
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"datePublished": "2026-05-28T09:36:20.855Z",
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"dateUpdated": "2026-11-06T16:13:42.527Z"
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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": "2026-10-30T12:26:02.679Z"
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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\nopenvswitch: vport: fix self-deadlock on release of tunnel ports\n\nvports are used concurrently and protected by RCU, so netdev_put()\nmust happen after the RCU grace period. So, either in an RCU call or\nafter the synchronize_net(). The rtnl_delete_link() must happen under\nRTNL and so can't be executed in RCU context. Calling synchronize_net()\nwhile holding RTNL is not a good idea for performance and system\nstability under load in general, so calling netdev_put() in RCU call\nis the right solution here.\n\nHowever,\nwhen the device is deleted, rtnl_unlock() will call netdev_run_todo()\nand block until all the references are gone. In the current code this\nmeans that we never reach the call_rcu() and the vport is never freed\nand the reference is never released, causing a self-deadlock on device\nremoval.\n\nFix that by moving the rcu_call() before the rtnl_unlock(), so the\nscheduled RCU callback will be executed when synchronize_net() is\ncalled from the rtnl_unlock()->netdev_run_todo() while the RTNL itself\nis already released."
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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/openvswitch/vport-netdev.c"
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],
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"versions": [
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{
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"version": "f0ec49d3a39c1f5a4f3270ea27ca0854fad2a2a2",
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"lessThan": "3600033f31b1afa16d73a24905eec9ee1d222b97",
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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": "9d56aced21fb9c104e8a3f3be9b21fbafe448ffc",
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"lessThan": "8ae6c15fc473c9ad03b0173330cce9a092c76154",
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"status": "affected",
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},
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{
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"version": "42f0d3d81209654c08ffdde5a34b9b92d2645896",
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"lessThan": "c741433f6c8dcdecd1d9549d89053761fd1ea413",
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"status": "affected",
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},
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{
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"version": "bbe7bd722bfaea36aab3da6cc60fb4a05c644643",
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"lessThan": "6522d59fb7de55ce0f0f285d962243ddffebb01f",
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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": "98b726ab5e2a4811e27c28e4d041f75bba147eab",
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"lessThan": "3df75fff46b1517eb479d8e6b8e3500763715dd0",
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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": "6931d21f87bc6d657f145798fad0bf077b82486c",
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"lessThan": "366c482965c673565ecb8bcfb15d5548f13a6a10",
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},
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},
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"status": "affected",
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},
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{
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"version": "6.1.168",
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"lessThan": "6.1.175",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.6.131",
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"lessThan": "6.6.140",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.12.80",
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"lessThan": "6.12.88",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.18.21",
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"lessThan": "6.18.30",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.19.11",
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"lessThan": "6.20",
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"status": "affected",
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"versionType": "semver"
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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/openvswitch/vport-netdev.c"
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],
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"versions": [
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{
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"version": "7.0",
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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": "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": "6.1.175",
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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": "6.6.140",
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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": "6.12.88",
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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": "6.18.30",
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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": "7.0.7",
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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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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"url": "https://git.kernel.org/stable/c/c741433f6c8dcdecd1d9549d89053761fd1ea413"
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{
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"url": "https://git.kernel.org/stable/c/6522d59fb7de55ce0f0f285d962243ddffebb01f"
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},
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{
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"url": "https://git.kernel.org/stable/c/3df75fff46b1517eb479d8e6b8e3500763715dd0"
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},
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{
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"url": "https://git.kernel.org/stable/c/366c482965c673565ecb8bcfb15d5548f13a6a10"
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{
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"url": "https://git.kernel.org/stable/c/aa69918bd418e700309fdd08509dba324fb24296"
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}
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],
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"title": "openvswitch: vport: fix self-deadlock on release of tunnel ports",
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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": "2026-10-15T01:20:57.991Z"
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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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}
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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-2026-46165",
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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": "2026-11-06T16:10:45.765449Z"
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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": "2026-11-06T16:13:42.527Z"
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}
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]
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}
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} |