221 lines
11 KiB
JSON
221 lines
11 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-2023-53263",
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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": "2025-09-16T08:05:12.514Z",
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"datePublished": "2025-09-16T08:06:53.994Z",
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"dateUpdated": "2026-08-05T09:13:20.402Z"
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},
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"cna": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T09:13:20.402Z"
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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\ndrm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_create\n\nWe can't simply free the connector after calling drm_connector_init on it.\nWe need to clean up the drm side first.\n\nIt might not fix all regressions from commit 2b5d1c29f6c4\n(\"drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts\"),\nbut at least it fixes a memory corruption in error handling related to\nthat commit."
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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:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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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:L - The bug is in nouveau DRM connector setup during GPU driver probe (PCI probe → nouveau_display_create → nouveau_connector_create), reachable only with local access to a system using the nouveau driver, not via network packets.\nAC:L - On affected hardware/configurations where nvif_conn_ctor or the DP IRQ nvif_conn_event_ctor fails, the UAF is deterministic: drm_connector_init already linked the object, kfree skips cleanup, and the caller immediately walks connector_list (encoder cull), with no attacker-uncontrollable race.\nPR:L - After the dangling connector remains on the DRM mode_config list, unprivileged local users with access to the DRM device (common via seat/video group) can exercise connector-list paths; exploitation does not require real root beyond ordinary local DRM access.\nUI:N - No separate victim action is required; the faulty error path runs during driver initialization and subsequent DRM use needs no cooperative user interaction.\nS:U - This is in-kernel memory corruption/privilege impact within the host kernel’s security authority, not a VM/IOMMU/sandbox boundary crossing.\nC:H - Use-after-free of the drm_connector object leaves a heap object the attacker can reclaim and control, enabling arbitrary kernel read primitives per UAF guidance.\nI:H - The same UAF is exploitable for heap shaping and arbitrary write/control-flow hijacking in the kernel, so integrity impact is High.\nA:H - Dereferencing the freed connector during list walks (probe cull, cleanup, or later DRM operations) causes kernel oops/panic or equivalent denial of service."
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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/gpu/drm/nouveau/nouveau_connector.c"
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],
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{
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"version": "95983aea80038539ebc70e41e73e9bb4eabd1a92",
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"lessThan": "3f27451c9f29d5ed00232968680c7838a44dcac7",
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"status": "affected",
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"versionType": "git"
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"version": "95983aea80038539ebc70e41e73e9bb4eabd1a92",
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"lessThan": "872feeecd08c81d212a52211d212897b8a857544",
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"status": "affected",
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{
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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/gpu/drm/nouveau/nouveau_connector.c"
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],
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"versions": [
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{
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"version": "6.0",
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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": "6.0",
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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": "6.1.47",
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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": "6.4.12",
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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",
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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": "6.0",
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"versionEndExcluding": "6.1.47"
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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": "6.0",
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"versionEndExcluding": "6.4.12"
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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": "6.0",
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"versionEndExcluding": "6.5"
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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/3f27451c9f29d5ed00232968680c7838a44dcac7"
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},
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{
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"url": "https://git.kernel.org/stable/c/872feeecd08c81d212a52211d212897b8a857544"
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},
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{
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"url": "https://git.kernel.org/stable/c/1b254b791d7b7dea6e8adc887fbbd51746d8bb27"
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}
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],
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"title": "drm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_create",
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"x_generator": {
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"engine": "bippy-1.2.0"
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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-2023-53263",
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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": "2026-01-14T18:03:23.898360Z"
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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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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-01-14T18:12:52.278Z"
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}
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}
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]
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}
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} |