237 lines
12 KiB
JSON
237 lines
12 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-2023-53374",
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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": "2025-09-17T14:54:09.734Z",
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"datePublished": "2025-09-18T13:33:20.965Z",
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"dateUpdated": "2026-08-05T09:13:43.036Z"
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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": "2026-08-05T09:13:43.036Z"
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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\nBluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early\n\nNot calling hci_(dis)connect_cfm before deleting conn referred to by a\nsocket generally results to use-after-free.\n\nWhen cleaning up SCO connections when the parent ACL is deleted too\nearly, use hci_conn_failed to do the connection cleanup properly.\n\nWe also need to clean up ISO connections in a similar situation when\nconnecting has started but LE Create CIS is not yet sent, so do it too\nhere."
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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:A/AC:L/PR:N/UI:N/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:A - The bug is in Bluetooth HCI connection teardown for SCO/ISO children; an in-range peer can drop the parent ACL (HCI disconnect / link loss) while SCO or ISO setup still has an unset handle, which is the Adjacent Bluetooth deployment model for phones and headsets.\nAC:L - The attacker controls both sides of the timing window by initiating or observing SCO/ISO setup and then aborting the parent ACL before the child handle is assigned; syzbot reproduced this reliably, and UAF bugs are AC:L unless a truly uncontrollable race is required.\nPR:N - An adjacent Bluetooth peer triggers the vulnerable hci_conn_unlink child cleanup via over-the-air ACL teardown with no local account or capability on the victim; the dangling socket reference is held by ordinary Bluetooth audio stacks already running on the device.\nUI:N - Once Bluetooth is up with a SCO/ISO path in progress (headset/HFP/LE Audio), the peer’s own disconnect drives the free without requiring the victim to open a file, mount anything, or otherwise interact at exploit time.\nS:U - The use-after-free corrupts kernel heap within the same host kernel authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - This is a slab use-after-free of the hci_conn object still referenced by the SCO socket; UAF enables attacker control of freed object contents and arbitrary kernel read primitives.\nI:H - KASAN confirmed a slab-use-after-free write in sco_chan_del via hci_conn_drop/atomic_dec_and_test on the freed hci_conn, which is exploitable for heap corruption and control-flow hijacking.\nA:H - The UAF causes kernel oops/panic under normal close/teardown even when not fully exploited, matching High availability impact for use-after-free bugs."
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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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"net/bluetooth/hci_conn.c"
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],
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"versions": [
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{
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"version": "ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f",
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"lessThan": "397d58007532644b35fad746da48c41161f32a57",
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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": "ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f",
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"lessThan": "e94b898463a62b72a2a8b75dea8936bf4db78e00",
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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": "ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f",
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"lessThan": "3344d318337d9dca928fd448e966557ec5063f85",
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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": "75e35bd4b7935ceed2aacd82f55940e73bf0b63b",
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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": "6.3.8",
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"lessThan": "6.4",
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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/bluetooth/hci_conn.c"
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],
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"versions": [
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{
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"version": "6.4",
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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": "6.4",
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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": "6.4.16",
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"lessThanOrEqual": "6.4.*",
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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": "6.5.3",
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"lessThanOrEqual": "6.5.*",
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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",
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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": "6.4",
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"versionEndExcluding": "6.4.16"
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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": "6.4",
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"versionEndExcluding": "6.5.3"
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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": "6.4",
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"versionEndExcluding": "6.6"
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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": "6.3.8"
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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/397d58007532644b35fad746da48c41161f32a57"
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},
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{
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"url": "https://git.kernel.org/stable/c/e94b898463a62b72a2a8b75dea8936bf4db78e00"
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},
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{
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"url": "https://git.kernel.org/stable/c/3344d318337d9dca928fd448e966557ec5063f85"
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}
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],
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"title": "Bluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early",
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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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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 7.8,
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"attackVector": "LOCAL",
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"integrityImpact": "HIGH",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "HIGH"
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}
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},
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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-2023-53374",
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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": "2026-01-14T18:54:25.271043Z"
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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-416",
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"description": "CWE-416 Use After Free"
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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": "2026-01-14T19:03:03.307Z"
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}
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}
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]
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}
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} |