193 lines
11 KiB
JSON
193 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-2025-21906",
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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": "2024-12-29T08:45:45.786Z",
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"datePublished": "2025-04-01T15:40:47.059Z",
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"dateUpdated": "2026-10-15T21:51:55.394Z"
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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": "2026-08-05T11:55:17.575Z"
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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\nwifi: iwlwifi: mvm: clean up ROC on failure\n\nIf the firmware fails to start the session protection, then we\ndo call iwl_mvm_roc_finished() here, but that won't do anything\nat all because IWL_MVM_STATUS_ROC_P2P_RUNNING was never set.\nSet IWL_MVM_STATUS_ROC_P2P_RUNNING in the failure/stop path.\nIf it started successfully before, it's already set, so that\ndoesn't matter, and if it didn't start it needs to be set to\nclean up.\n\nNot doing so will lead to a WARN_ON() later on a fresh remain-\non-channel, since the link is already active when activated as\nit was never deactivated."
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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:L/I:L/A:H",
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"baseScore": 7.6,
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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 affected code is the iwlwifi P2P remain-on-channel/session-protection path, which is driven over the air by adjacent Wi-Fi Direct peers — an attacker in radio range performing P2P discovery/GO negotiation causes the target to issue repeated ROC cycles, and RF congestion on the same segment is what makes the firmware fail to start session protection. No routable-network path exists, so this is Adjacent rather than Network.\nAC:L - The attacker can drive ROC attempts repeatedly and indefinitely at no cost, and each attempt that the firmware fails to start leaks a station ID and leaves the link active; there is no memory layout to guess, no race to win, and no lockout, so success is only a matter of retrying.\nPR:N - An adjacent P2P peer needs no credentials on the target — P2P discovery, provision discovery and GO negotiation are entirely pre-association, and the target's supplicant responds automatically by requesting off-channel ROC on the P2P_DEVICE interface.\nUI:N - On devices where Wi-Fi Direct/P2P is active (Android phones, Miracast/Chromecast-capable systems, wpa_supplicant with P2P enabled), the P2P device sits in listen/find state and answers peer frames automatically, so no victim action is required at exploitation time.\nS:U - The corrupted state, the WARN, and the leaked station/queue resources are all confined to the kernel's own iwlwifi driver state within the same host; no VM, IOMMU, or sandbox boundary is crossed.\nC:L - The resulting `WARN_ON_ONCE()` in `iwl_mvm_link_changed()` dumps a full backtrace with kernel text/module addresses and register contents into the ring buffer, exposing KASLR-relevant pointers on the common `dmesg_restrict=0` configurations; the leak is bounded to that log record with no out-of-bounds or arbitrary read.\nI:L - The skipped cleanup leaves stale kernel/firmware state — the link remains active, a firmware station entry and the p2p_dev queue are orphaned and overwritten on the next ROC, and unflushed off-channel frames are documented to be transmitted during a later, unrelated time event (i.e. on the wrong channel/context). The modification is limited to driver/device state, not arbitrary kernel memory.\nA:H - The bug reliably produces a kernel `WARN_ON_ONCE`, which panics immediately on the many production, cloud, hardened, Android and CI configurations that set `panic_on_warn=1`; even without that, repeated triggering leaks firmware station IDs until `iwl_mvm_find_free_sta_id()` returns `IWL_INVALID_STA`, breaking remain-on-channel, P2P and association until the interface or firmware is reset."
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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/net/wireless/intel/iwlwifi/mvm/time-event.c"
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],
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"versions": [
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{
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"version": "35c1bbd93c4e6969b3ac238b48a8bdff3e223ed8",
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"lessThan": "a88c18409b5d69f426d5acc583c053eac71756a3",
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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": "35c1bbd93c4e6969b3ac238b48a8bdff3e223ed8",
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"lessThan": "d1a12fcb9051bbf38b2e5af310ffb102a0fab6f9",
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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": "35c1bbd93c4e6969b3ac238b48a8bdff3e223ed8",
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"lessThan": "f9751163bffd3fe60794929829f810968c6de73d",
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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/net/wireless/intel/iwlwifi/mvm/time-event.c"
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],
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"versions": [
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{
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"version": "6.9",
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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": "6.9",
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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": "6.12.19",
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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": "6.13.7",
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"lessThanOrEqual": "6.13.*",
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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": "6.14",
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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": "6.9",
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"versionEndExcluding": "6.12.19"
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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": "6.9",
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"versionEndExcluding": "6.13.7"
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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": "6.9",
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"versionEndExcluding": "6.14"
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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/a88c18409b5d69f426d5acc583c053eac71756a3"
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},
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{
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"url": "https://git.kernel.org/stable/c/d1a12fcb9051bbf38b2e5af310ffb102a0fab6f9"
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},
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{
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"url": "https://git.kernel.org/stable/c/f9751163bffd3fe60794929829f810968c6de73d"
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}
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],
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"title": "wifi: iwlwifi: mvm: clean up ROC on failure",
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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-2025-21906",
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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": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-15T21:43:41.307072Z"
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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": "2026-10-15T21:51:55.394Z"
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}
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}
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]
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}
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} |