256 lines
15 KiB
JSON
256 lines
15 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-2025-68379",
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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": "2025-12-16T14:48:05.311Z",
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"datePublished": "2025-12-24T10:33:07.538Z",
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"dateUpdated": "2026-10-30T12:23:16.904Z"
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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": "2026-10-30T12:23:16.904Z"
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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\nRDMA/rxe: Fix null deref on srq->rq.queue after resize failure\n\nA NULL pointer dereference can occur in rxe_srq_chk_attr() when\nibv_modify_srq() is invoked twice in succession under certain error\nconditions. The first call may fail in rxe_queue_resize(), which leads\nrxe_srq_from_attr() to set srq->rq.queue = NULL. The second call then\ntriggers a crash (null deref) when accessing\nsrq->rq.queue->buf->index_mask.\n\nCall Trace:\n<TASK>\nrxe_modify_srq+0x170/0x480 [rdma_rxe]\n? __pfx_rxe_modify_srq+0x10/0x10 [rdma_rxe]\n? uverbs_try_lock_object+0x4f/0xa0 [ib_uverbs]\n? rdma_lookup_get_uobject+0x1f0/0x380 [ib_uverbs]\nib_uverbs_modify_srq+0x204/0x290 [ib_uverbs]\n? __pfx_ib_uverbs_modify_srq+0x10/0x10 [ib_uverbs]\n? tryinc_node_nr_active+0xe6/0x150\n? uverbs_fill_udata+0xed/0x4f0 [ib_uverbs]\nib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x2c0/0x470 [ib_uverbs]\n? __pfx_ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x10/0x10 [ib_uverbs]\n? uverbs_fill_udata+0xed/0x4f0 [ib_uverbs]\nib_uverbs_run_method+0x55a/0x6e0 [ib_uverbs]\n? __pfx_ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x10/0x10 [ib_uverbs]\nib_uverbs_cmd_verbs+0x54d/0x800 [ib_uverbs]\n? __pfx_ib_uverbs_cmd_verbs+0x10/0x10 [ib_uverbs]\n? __pfx___raw_spin_lock_irqsave+0x10/0x10\n? __pfx_do_vfs_ioctl+0x10/0x10\n? ioctl_has_perm.constprop.0.isra.0+0x2c7/0x4c0\n? __pfx_ioctl_has_perm.constprop.0.isra.0+0x10/0x10\nib_uverbs_ioctl+0x13e/0x220 [ib_uverbs]\n? __pfx_ib_uverbs_ioctl+0x10/0x10 [ib_uverbs]\n__x64_sys_ioctl+0x138/0x1c0\ndo_syscall_64+0x82/0x250\n? fdget_pos+0x58/0x4c0\n? ksys_write+0xf3/0x1c0\n? __pfx_ksys_write+0x10/0x10\n? do_syscall_64+0xc8/0x250\n? __pfx_vm_mmap_pgoff+0x10/0x10\n? fget+0x173/0x230\n? fput+0x2a/0x80\n? ksys_mmap_pgoff+0x224/0x4c0\n? do_syscall_64+0xc8/0x250\n? do_user_addr_fault+0x37b/0xfe0\n? clear_bhb_loop+0x50/0xa0\n? clear_bhb_loop+0x50/0xa0\n? clear_bhb_loop+0x50/0xa0\nentry_SYSCALL_64_after_hwframe+0x76/0x7e"
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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 required corruption is initiated through a local RDMA uverbs ioctl or write that modifies an attacker-owned RXE SRQ. Network traffic can exercise the damaged queue concurrently, but a remote peer cannot perform the required resize.\nAC:L - The attacker can deliberately fail resizing using an invalid mmap-info destination or controlled queue occupancy, then issue another modification. Any use-after-free race involves attacker-controlled concurrent uverbs calls or traffic.\nPR:L - An unprivileged user can open the mode-0666 uverbs device, create a context, PD, and SRQ, and invoke modify without capability checks. Object lookup requires ownership of the SRQ but no administrative privilege.\nUI:N - Exploitation requires no action by another user; the attacker creates and modifies the affected SRQ directly.\nS:U - The vulnerable RXE code and the affected kernel resources share the same security authority. Kernel compromise or privilege escalation does not inherently cross a CVSS scope boundary.\nC:H - The failure path frees a still-live queue, and shared uobject lookup permits concurrent modify operations to retain and use that freed queue. Heap reclamation can turn this use-after-free and associated double release into kernel-memory disclosure primitives.\nI:H - A concurrent resize can reach resize_finish() with the freed queue, where swap() writes a complete queue header into freed or reallocated slab memory and cleanup can release stale resources again. This provides defensible kernel heap corruption and potential control-flow hijacking.\nA:H - A sequential second modification deterministically dereferences the NULL queue and causes a kernel oops or panic. Concurrent use-after-free paths can likewise crash the system and are repeatable by the attacker."
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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/infiniband/sw/rxe/rxe_srq.c"
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],
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"versions": [
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{
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"version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
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"lessThan": "3733e80e32d1479a8b9bbffffac644068483c720",
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"status": "affected",
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"versionType": "git"
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"lessThan": "58aca869babd48cb9c3d6ee9e1452c4b9f5266a6",
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"status": "affected",
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"lessThan": "b8f6eeb87a76b6fb1f6381b0b2894568e1b784f7",
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"lessThan": "5dbeb421e137824aa9bd8358bdfc926a3965fc0d",
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"status": "affected",
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"versionType": "git"
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{
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"version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
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"lessThan": "bc4c14a3863cc0e03698caec9a0cdabd779776ee",
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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/infiniband/sw/rxe/rxe_srq.c"
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],
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"versions": [
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{
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"version": "4.8",
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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": "4.8",
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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": "6.1.191",
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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": "6.6.120",
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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": "6.12.63",
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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": "6.17.13",
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"lessThanOrEqual": "6.17.*",
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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": "6.18.2",
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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",
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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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"operator": "OR",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.8",
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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/3733e80e32d1479a8b9bbffffac644068483c720"
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},
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{
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"url": "https://git.kernel.org/stable/c/58aca869babd48cb9c3d6ee9e1452c4b9f5266a6"
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},
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{
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"url": "https://git.kernel.org/stable/c/b8f6eeb87a76b6fb1f6381b0b2894568e1b784f7"
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},
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{
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"url": "https://git.kernel.org/stable/c/5dbeb421e137824aa9bd8358bdfc926a3965fc0d"
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},
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{
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"url": "https://git.kernel.org/stable/c/bc4c14a3863cc0e03698caec9a0cdabd779776ee"
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},
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{
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"url": "https://git.kernel.org/stable/c/503a5e4690ae14c18570141bc0dcf7501a8419b0"
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}
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],
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"title": "RDMA/rxe: Fix null deref on srq->rq.queue after resize 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-2025-68379",
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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": "2026-10-16T15:04:53.688116Z"
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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": "2026-10-16T15:09:43.601Z"
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}
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}
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]
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}
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} |