268 lines
13 KiB
JSON
268 lines
13 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-2026-43239",
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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": "2026-05-01T14:12:55.995Z",
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"datePublished": "2026-05-06T11:28:33.623Z",
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"dateUpdated": "2026-10-30T12:25:14.475Z"
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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": "2026-10-30T12:25:14.475Z"
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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\nsmb: client: prevent races in ->query_interfaces()\n\nIt was possible for two query interface works to be concurrently trying\nto update the interfaces.\n\nPrevent this by checking and updating iface_last_update under\niface_lock."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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"baseScore": 8.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:N - The vulnerable SMB client code processes FSCTL_QUERY_NETWORK_INTERFACE_INFO responses supplied by a remote SMB server over the network.\nAC:L - The required SMB3/multichannel capability and response timing can be controlled by a malicious server, and concurrent interface queries can be induced through normal mounted-session refresh/reconnect behavior.\nPR:N - The attacker needs no privileges on the victim system; a malicious or compromised SMB server can supply the responses once the client connects.\nUI:R - Exploitation requires the victim system or user to mount/connect to the SMB share, which is user interaction under the provided guidance.\nS:U - The impact is within the client kernel that contains the vulnerable SMB client component, without crossing a separate security authority such as a VM boundary.\nC:H - The race can corrupt the kernel-maintained cifs_server_iface linked list/refcount state, and kernel heap/list corruption is defensibly treated as potentially exposing arbitrary kernel memory.\nI:H - The same kernel list corruption can plausibly be leveraged beyond a simple fault into kernel memory corruption or code execution, so integrity impact is high under the required higher-severity rule.\nA:H - Even without full exploitation, the race can corrupt interface-list state and trigger kernel oops/panic or hang in the SMB client path."
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}
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]
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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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"fs/smb/client/smb2ops.c"
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],
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"versions": [
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{
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"version": "aa45dadd34e44fcd6a9df4b395bee5b5633b4cec",
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"lessThan": "de3c1653510d566a245cc54ac4bb9e50ebc5faa8",
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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": "aa45dadd34e44fcd6a9df4b395bee5b5633b4cec",
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"lessThan": "93e8e3ee165ae4609a1222b516b573837103d2c3",
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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": "aa45dadd34e44fcd6a9df4b395bee5b5633b4cec",
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"lessThan": "ab6564f416a6eaf1199200b6100952407b438f7d",
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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": "aa45dadd34e44fcd6a9df4b395bee5b5633b4cec",
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"lessThan": "6287eefaf21ec805d42f941bd368018cf397a7f5",
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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": "aa45dadd34e44fcd6a9df4b395bee5b5633b4cec",
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"lessThan": "76cc4faba0343c6db945b8dc75425b33d633e1b8",
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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": "aa45dadd34e44fcd6a9df4b395bee5b5633b4cec",
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"lessThan": "c3c06e42e1527716c54f3ad2ced6a034b5f3a489",
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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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"fs/smb/client/smb2ops.c"
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],
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"versions": [
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{
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"version": "5.19",
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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": "5.19",
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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": "6.1.191",
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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": "6.6.128",
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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": "6.12.75",
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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": "6.18.16",
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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": "6.19.6",
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"lessThanOrEqual": "6.19.*",
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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",
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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": "5.19",
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"versionEndExcluding": "6.1.191"
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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": "5.19",
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"versionEndExcluding": "6.6.128"
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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": "5.19",
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"versionEndExcluding": "6.12.75"
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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": "5.19",
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"versionEndExcluding": "6.18.16"
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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": "5.19",
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"versionEndExcluding": "6.19.6"
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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": "5.19",
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"versionEndExcluding": "7.0"
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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/de3c1653510d566a245cc54ac4bb9e50ebc5faa8"
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},
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{
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"url": "https://git.kernel.org/stable/c/93e8e3ee165ae4609a1222b516b573837103d2c3"
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},
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{
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"url": "https://git.kernel.org/stable/c/ab6564f416a6eaf1199200b6100952407b438f7d"
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},
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{
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"url": "https://git.kernel.org/stable/c/6287eefaf21ec805d42f941bd368018cf397a7f5"
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},
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{
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"url": "https://git.kernel.org/stable/c/76cc4faba0343c6db945b8dc75425b33d633e1b8"
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},
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{
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"url": "https://git.kernel.org/stable/c/c3c06e42e1527716c54f3ad2ced6a034b5f3a489"
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}
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],
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"title": "smb: client: prevent races in ->query_interfaces()",
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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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"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-2026-43239",
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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": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T15:16:00.528244Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-362",
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"description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"
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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": "2026-10-19T19:16:25.161Z"
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}
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}
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]
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}
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} |