193 lines
9.9 KiB
JSON
193 lines
9.9 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-2023-53643",
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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": "2025-10-07T15:16:59.658Z",
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"datePublished": "2025-10-07T15:19:42.374Z",
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"dateUpdated": "2026-10-15T21:41:32.662Z"
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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": "2026-08-05T09:15:19.014Z"
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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\nnvme-tcp: don't access released socket during error recovery\n\nWhile the error recovery work is temporarily failing reconnect attempts,\nrunning the 'nvme list' command causes a kernel NULL pointer dereference\nby calling getsockname() with a released socket.\n\nDuring error recovery work, the nvme tcp socket is released and a new one\ncreated, so it is not safe to access the socket without proper check."
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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: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 dereference is reached only through a local sysfs read of `/sys/class/nvme/nvmeX/address`, which invokes `nvme_tcp_get_address()`; a remote peer can induce the vulnerable state by dropping the fabric connection but cannot itself complete the trigger.\nAC:L - The bad state persists for the full 10-second default reconnect_delay and recurs for up to 600 seconds of ctrl_loss_tmo, and the world-readable `state` attribute lets the attacker observe the `connecting` window and time the read deterministically — the commit itself reports a plain `nvme list` reproducing it.\nPR:L - The `address` attribute is `S_IRUGO` (0444), so any unprivileged local account can read it; no capability, namespace trick, or device access is needed.\nUI:N - The attacker performs the sysfs read directly and needs no victim action; the same crash also occurs unaided from routine monitoring tools such as `nvme list`.\nS:U - Impact is confined to the kernel of the host running the NVMe-TCP initiator, with no crossing of a VM, IOMMU, or other security-authority boundary.\nC:H - `nvme_tcp_free_queue()` releases the socket without clearing `queue->sock`, so `kernel_getsockname()` reads `ops` and address data from freed `sock_inode_cache` memory that an unprivileged user can reclaim by spraying sockets, and the result is copied into the world-readable sysfs buffer, disclosing kernel/other-socket state.\nI:H - The use-after-free performs an indirect call through `sock->ops->getname` loaded from freed, reclaimable slab memory, giving a control-flow hijack primitive once the attacker grooms the reclaimed object.\nA:H - In the common case `queue->sock` is NULL or points at a released socket with `ops` cleared, so the read produces an immediate kernel NULL pointer dereference and oops/panic, repeatable on demand."
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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/nvme/host/tcp.c"
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],
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"versions": [
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{
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"version": "02c57a82c0081141abc19150beab48ef47f97f18",
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"lessThan": "fe2d9e54165dadaa0d0cc3355c0be9c3e129fa0d",
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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": "02c57a82c0081141abc19150beab48ef47f97f18",
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"lessThan": "d82f762db4776fa11de88018f0f5de2d5db72a72",
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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": "02c57a82c0081141abc19150beab48ef47f97f18",
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"lessThan": "76d54bf20cdcc1ed7569a89885e09636e9a8d71d",
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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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"drivers/nvme/host/tcp.c"
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],
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"versions": [
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{
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"version": "6.1",
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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": "6.1",
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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": "6.1.18",
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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": "6.2.5",
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"lessThanOrEqual": "6.2.*",
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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": "6.3",
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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": "6.1",
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"versionEndExcluding": "6.1.18"
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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": "6.1",
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"versionEndExcluding": "6.2.5"
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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": "6.1",
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"versionEndExcluding": "6.3"
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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/fe2d9e54165dadaa0d0cc3355c0be9c3e129fa0d"
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},
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{
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"url": "https://git.kernel.org/stable/c/d82f762db4776fa11de88018f0f5de2d5db72a72"
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},
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{
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"url": "https://git.kernel.org/stable/c/76d54bf20cdcc1ed7569a89885e09636e9a8d71d"
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}
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],
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"title": "nvme-tcp: don't access released socket during error recovery",
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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-2023-53643",
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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": "2026-10-15T21:36:13.085900Z"
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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": "2026-10-15T21:41:32.662Z"
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}
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}
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]
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}
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} |