356 lines
17 KiB
JSON
356 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-2022-48851",
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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": "2024-07-16T11:38:08.913Z",
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"datePublished": "2024-07-16T12:25:18.488Z",
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"dateUpdated": "2026-08-05T08:52:38.698Z"
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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": "2026-08-05T08:52:38.698Z"
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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\nstaging: gdm724x: fix use after free in gdm_lte_rx()\n\nThe netif_rx_ni() function frees the skb so we can't dereference it to\nsave the skb->len."
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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:N/S:U/C:H/I:H/A:H",
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"baseScore": 9.8,
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"baseSeverity": "CRITICAL"
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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 - gdm_lte_rx() is the RX completion path of the GDM724x LTE WWAN netdev; a remote peer that can deliver packets over the cellular/IP path causes the modem to submit LTE_RX_SDU bulk data, which flows USB RX → do_rx() → gdm_lte_receive_pkt() → gdm_lte_netif_rx() → gdm_lte_rx() on every received SDU—ordinary network traffic, not USB-descriptor framing.\nAC:L - Every successful receive that returns NET_RX_SUCCESS from netif_rx_ni() takes the else branch and dereferences skb->len after the skb has been consumed/freed by backlog softirq processing; the attacker only needs to deliver packets and needs no race or uncontrollable victim state.\nPR:N - Inbound LTE SDUs are processed with no host authentication, credentials, or capabilities; a remote network peer needs no OS account on the target.\nUI:N - Once the modem is attached and the lte*pdn* interfaces are up (typical always-on LTE/IoT deployment), packet delivery alone triggers the path with no mount, file-open, or other victim action.\nS:U - The use-after-free corrupts/uses host kernel skb/stats state within the same OS security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - This is a use-after-free of the skb object after netif_rx_ni(); per scoring guidance a UAF enables heap reuse and arbitrary kernel memory disclosure (the freed skb->len read also feeds visible rx_bytes stats).\nI:H - Use-after-free of a slab skb is memory corruption that, under the higher-severity rule, is treated as enabling heap spray and write/control-flow hijack primitives in kernel context.\nA:H - Use-after-free of a consumed skb can oops/panic the kernel (and UAFs are scored A:H even when not fully exploited); a remote peer can retrigger it per received packet."
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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/staging/gdm724x/gdm_lte.c"
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],
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"versions": [
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{
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"version": "61e121047645122c47714fcda684d0ee67f444af",
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"lessThan": "6dc7b87c62423bfa68139fe95e85028aab584c9a",
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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": "61e121047645122c47714fcda684d0ee67f444af",
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"lessThan": "83a9c886c2b5a0d28c0b37e1736b47f38d61332a",
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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": "61e121047645122c47714fcda684d0ee67f444af",
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"lessThan": "48ecdf3e29a6e514e8196691589c7dfc6c4ac169",
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"status": "affected",
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"versionType": "git"
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{
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"version": "61e121047645122c47714fcda684d0ee67f444af",
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"lessThan": "403e3afe241b62401de1f8629c9c6b9b3d69dbff",
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"status": "affected",
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"versionType": "git"
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},
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"lessThan": "6d9700b445098dbbce0caff4b8cfca214cf1e757",
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"status": "affected",
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"versionType": "git"
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},
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{
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"lessThan": "1fb9dd3787495b4deb0efe66c58306b65691a48f",
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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": "61e121047645122c47714fcda684d0ee67f444af",
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"lessThan": "d39dc79513e99147b4c158a8a9e46743e23944f5",
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"status": "affected",
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"versionType": "git"
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{
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"version": "61e121047645122c47714fcda684d0ee67f444af",
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"lessThan": "fc7f750dc9d102c1ed7bbe4591f991e770c99033",
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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/staging/gdm724x/gdm_lte.c"
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],
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"versions": [
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{
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"version": "3.12",
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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": "3.12",
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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": "4.9.307",
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"lessThanOrEqual": "4.9.*",
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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": "4.14.272",
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"lessThanOrEqual": "4.14.*",
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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": "4.19.235",
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"lessThanOrEqual": "4.19.*",
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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": "5.4.185",
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"lessThanOrEqual": "5.4.*",
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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": "5.10.106",
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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": "5.15.29",
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"lessThanOrEqual": "5.15.*",
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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": "5.16.15",
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"lessThanOrEqual": "5.16.*",
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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": "5.17",
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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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"cpeApplicability": [
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"nodes": [
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"operator": "OR",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.12",
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"versionEndExcluding": "4.9.307"
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}
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],
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"title": "staging: gdm724x: fix use after free in gdm_lte_rx()",
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"x_generator": {
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"title": "CVE Program Container",
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"type": "ssvc",
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"content": {
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"id": "CVE-2022-48851",
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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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"Automatable": "no"
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"version": "2.0.3",
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"timestamp": "2024-09-10T16:26:05.468000Z"
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"title": "CISA ADP Vulnrichment",
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