310 lines
17 KiB
JSON
310 lines
17 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-2026-64510",
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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": "2026-07-19T15:36:31.793Z",
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"datePublished": "2026-07-25T08:52:03.208Z",
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"dateUpdated": "2026-10-19T20:48:37.449Z"
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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": "2026-08-17T04:57:01.009Z"
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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\nACPI: NFIT: core: Fix acpi_nfit_init() error cleanup\n\nIf acpi_nfit_init() fails after adding the acpi_desc object to the\nacpi_descs list, that object is never removed from that list because\nthe acpi_nfit_shutdown() devm action is not added for the NFIT device\nin that case. Next, the acpi_nfit_init() failure causes\nacpi_nfit_probe() to fail, the acpi_desc object is freed, and a\ndangling pointer is left behind in the acpi_descs. Any subsequent\nACPI Machine Check Exception will trigger nfit_handle_mce() which\niterates over acpi_descs and so a use-after-free will occur.\n\nMoreover, if acpi_nfit_probe() returns 0 after installing a notify\nhandler for the NFIT device and without allocating the acpi_desc\nobject and setting the NFIT device's driver data pointer, the\nacpi_desc object will be allocated by acpi_nfit_update_notify()\nand acpi_nfit_init() will be called to initialize it. Regardless\nof whether or not acpi_nfit_init() fails in that case, the\nacpi_nfit_shutdown() devm action is not added for the NFIT device\nand acpi_desc is never removed from the acpi_descs list. If the\nacpi_desc object is freed subsequently on driver removal, any\nsubsequent ACPI MCE will lead to a use-after-free like in the\nprevious case.\n\nTo address the first issue mentioned above, make acpi_nfit_probe()\ncall acpi_nfit_shutdown() directly on acpi_nfit_init() failures and\nto address the other one, add a remove callback to the driver and\nmake it call acpi_nfit_shutdown(). Also, since it is now possible to\npass NULL to acpi_nfit_shutdown() or the acpi_desc object passed to it\nmay not have been initialized, add checks against NULL for acpi_desc and\nits nvdimm_bus field to that function and make acpi_nfit_unregister()\nclear the latter after unregistering the NVDIMM bus."
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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:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7,
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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:L - No network, wireless, or user-namespace interface reaches this path; the highest reasonable attack path is a local process triggering a qualifying MCE through an accessible poisoned memory mapping.\nAC:H - Exploitation requires a descriptor already made stale by NFIT initialization failure or late initialization followed by removal, plus a usable-address uncorrectable MCE. An unprivileged attacker cannot reliably create all these firmware and hardware conditions.\nPR:L - Once the stale state and poisoned mapping exist, a basic local account can trigger the MCE and spray reclaimed heap memory without capabilities. Deterministic driver removal or software MCE injection is root-only, but is unnecessary in this higher-severity plausible scenario.\nUI:N - No action by another user is required after the vulnerable system state exists; the attacker can access the relevant memory directly.\nS:U - The UAF compromises the same host kernel and does not inherently cross a VM, IOMMU, or other security-authority boundary.\nC:H - The freed descriptor and its subordinate SPA objects contain attacker-reclaimable pointers and linked lists, permitting controlled kernel-memory dereferences and potential arbitrary disclosure.\nI:H - Locking the freed embedded mutex already writes to reclaimed memory, while controlled bus, region, and list pointers can provide stronger write primitives and potential kernel code execution.\nA:H - The dangling descriptor is traversed during MCE processing and can cause an invalid mutex operation, invalid pointer dereference, deadlock, oops, or kernel panic, as established by the [published record](https://nvd.nist.gov/vuln/detail/CVE-2026-64510)."
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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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"drivers/acpi/nfit/core.c"
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],
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"versions": [
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{
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"version": "a61fe6f7902ecaa89d5e6c709490fc4324927134",
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"lessThan": "ee82078e776ae31266cc70fdf62ac17c3c6f100a",
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"status": "affected",
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"status": "affected",
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"status": "affected",
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"version": "a61fe6f7902ecaa89d5e6c709490fc4324927134",
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"lessThan": "38bf27511ef41bffebd157ec3eba41fc89ba59cd",
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"status": "affected",
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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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"drivers/acpi/nfit/core.c"
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],
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"versions": [
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{
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"version": "4.6",
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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": "4.6",
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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": "5.10.261",
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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": "5.15.212",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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},
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{
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"version": "6.1.178",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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},
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{
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"version": "6.6.145",
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"status": "unaffected",
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},
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{
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"version": "6.12.97",
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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": "6.18.40",
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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": "7.1.4",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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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"references": [
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"url": "https://git.kernel.org/stable/c/ee82078e776ae31266cc70fdf62ac17c3c6f100a"
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},
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"url": "https://git.kernel.org/stable/c/6ff054cc02a763914773b026cacb429e5fbf64fa"
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"url": "https://git.kernel.org/stable/c/b07d22a2d17ad6465c87bd5752bc70e4c16e0ee4"
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"url": "https://git.kernel.org/stable/c/c127dbd832bd4b9aef8a749d9f491b74042f9b47"
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},
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{
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"url": "https://git.kernel.org/stable/c/df7c92216a1583a76cb0cbf2f21cd68870609b05"
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},
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{
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"url": "https://git.kernel.org/stable/c/3b2628f7682aea8d9ce09ad4b9a3bd144b451eaa"
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},
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{
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"url": "https://git.kernel.org/stable/c/7d69235bdc581a4346e9bcd6a8bea37d3e1abd25"
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},
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{
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"url": "https://git.kernel.org/stable/c/38bf27511ef41bffebd157ec3eba41fc89ba59cd"
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}
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],
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"title": "ACPI: NFIT: core: Fix acpi_nfit_init() error cleanup",
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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-2026-64510",
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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": "2026-10-16T15:41:28.832636Z"
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}
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}
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}
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],
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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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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"dateUpdated": "2026-10-19T20:48:37.449Z"
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}
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}
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]
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}
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} |