247 lines
13 KiB
JSON
247 lines
13 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-2026-43199",
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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": "2026-05-01T14:12:55.992Z",
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"datePublished": "2026-05-06T11:28:06.232Z",
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"dateUpdated": "2026-10-21T12:40:17.684Z"
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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": "2026-10-21T12:40:17.684Z"
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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\nnet/mlx5e: Fix \"scheduling while atomic\" in IPsec MAC address query\n\nFix a \"scheduling while atomic\" bug in mlx5e_ipsec_init_macs() by\nreplacing mlx5_query_mac_address() with ether_addr_copy() to get the\nlocal MAC address directly from netdev->dev_addr.\n\nThe issue occurs because mlx5_query_mac_address() queries the hardware\nwhich involves mlx5_cmd_exec() that can sleep, but it is called from\nthe mlx5e_ipsec_handle_event workqueue which runs in atomic context.\n\nThe MAC address is already available in netdev->dev_addr, so no need\nto query hardware. This avoids the sleeping call and resolves the bug.\n\nCall trace:\n BUG: scheduling while atomic: kworker/u112:2/69344/0x00000200\n __schedule+0x7ab/0xa20\n schedule+0x1c/0xb0\n schedule_timeout+0x6e/0xf0\n __wait_for_common+0x91/0x1b0\n cmd_exec+0xa85/0xff0 [mlx5_core]\n mlx5_cmd_exec+0x1f/0x50 [mlx5_core]\n mlx5_query_nic_vport_mac_address+0x7b/0xd0 [mlx5_core]\n mlx5_query_mac_address+0x19/0x30 [mlx5_core]\n mlx5e_ipsec_init_macs+0xc1/0x720 [mlx5_core]\n mlx5e_ipsec_build_accel_xfrm_attrs+0x422/0x670 [mlx5_core]\n mlx5e_ipsec_handle_event+0x2b9/0x460 [mlx5_core]\n process_one_work+0x178/0x2e0\n worker_thread+0x2ea/0x430"
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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:N/I:N/A:H",
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"baseScore": 7.5,
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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:N - The vulnerable path runs in mlx5 IPsec packet offload event handling, which can be driven by traffic on an exposed IPsec tunnel. A remote peer can cause the NIC ESN object-change event without local execution on the target.\nAC:L - There is no attacker-controlled race to win; once a packet-offload tunnel SA with ESN is present, the event path deterministically reaches the atomic-sleep bug. Traffic volume/sequence advancement is attacker-influenced.\nPR:N - The SA setup is a normal deployment precondition for the affected IPsec offload service, not a privilege the attacker must hold on the target. The packet sender needs no local account or target-side administrative capability.\nUI:N - No victim user action is needed after the susceptible IPsec offload configuration exists. The trigger is packet/event driven.\nS:U - The impact is within the kernel and the mlx5/IPsec networking subsystem on the same host. It does not cross a VM, IOMMU, or other separate security authority boundary.\nC:N - The bug is a sleeping firmware MAC query while holding a spinlock, not an out-of-bounds access, UAF, or information disclosure primitive. No kernel memory is exposed.\nI:N - The vulnerable call does not corrupt memory or provide an attacker-controlled write. It only performs a blocking command from atomic context.\nA:H - The kernel reports BUG: scheduling while atomic and the scheduler path can panic via panic-on-warn or destabilize the worker/kernel state. The trigger can be repeated, making denial of service high impact."
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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/ethernet/mellanox/mlx5/core/en_accel/ipsec.c"
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],
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"versions": [
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{
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"version": "cee137a634318bfbda18ee5af45d300153b57fa5",
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"lessThan": "5efde07521309274f26727860774614cbc187242",
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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": "cee137a634318bfbda18ee5af45d300153b57fa5",
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"lessThan": "e1407fb7c337373dfaaae2445d828b0b9ae26a29",
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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": "cee137a634318bfbda18ee5af45d300153b57fa5",
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"lessThan": "57957bc7f1865778ec9b1618e15515feb6df7eb4",
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"status": "affected",
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},
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{
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"lessThan": "546de94e41e92e1f7dc6213615fb7c794d05db98",
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"status": "affected",
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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/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c"
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],
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"versions": [
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{
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"version": "6.2",
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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": "6.2",
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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": "6.6.160",
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"lessThanOrEqual": "6.6.*",
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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": "6.12.75",
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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": "6.18.16",
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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": "6.19.6",
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"lessThanOrEqual": "6.19.*",
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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": "7.0",
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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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"nodes": [
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.2",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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/5efde07521309274f26727860774614cbc187242"
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},
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{
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"url": "https://git.kernel.org/stable/c/e1407fb7c337373dfaaae2445d828b0b9ae26a29"
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},
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{
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"url": "https://git.kernel.org/stable/c/57957bc7f1865778ec9b1618e15515feb6df7eb4"
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},
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{
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"url": "https://git.kernel.org/stable/c/546de94e41e92e1f7dc6213615fb7c794d05db98"
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},
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{
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"url": "https://git.kernel.org/stable/c/859380694f434597407632c29f30fdb5e763e6cc"
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}
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],
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"title": "net/mlx5e: Fix \"scheduling while atomic\" in IPsec MAC address query",
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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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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-43199",
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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": "yes"
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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": "2026-10-16T15:15:41.077140Z"
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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-362",
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"description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"
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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": "2026-10-19T19:16:23.966Z"
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}
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}
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} |