247 lines
12 KiB
JSON
247 lines
12 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-2023-53419",
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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": "2025-09-17T14:54:09.741Z",
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"datePublished": "2025-09-18T16:04:02.955Z",
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"dateUpdated": "2026-05-11T19:44:36.756Z"
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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": "2026-05-11T19:44:36.756Z"
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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\nrcu: Protect rcu_print_task_exp_stall() ->exp_tasks access\n\nFor kernels built with CONFIG_PREEMPT_RCU=y, the following scenario can\nresult in a NULL-pointer dereference:\n\n CPU1 CPU2\nrcu_preempt_deferred_qs_irqrestore rcu_print_task_exp_stall\n if (special.b.blocked) READ_ONCE(rnp->exp_tasks) != NULL\n raw_spin_lock_rcu_node\n np = rcu_next_node_entry(t, rnp)\n if (&t->rcu_node_entry == rnp->exp_tasks)\n WRITE_ONCE(rnp->exp_tasks, np)\n ....\n raw_spin_unlock_irqrestore_rcu_node\n raw_spin_lock_irqsave_rcu_node\n t = list_entry(rnp->exp_tasks->prev,\n struct task_struct, rcu_node_entry)\n (if rnp->exp_tasks is NULL, this\n will dereference a NULL pointer)\n\nThe problem is that CPU2 accesses the rcu_node structure's->exp_tasks\nfield without holding the rcu_node structure's ->lock and CPU2 did\nnot observe CPU1's change to rcu_node structure's ->exp_tasks in time.\nTherefore, if CPU1 sets rcu_node structure's->exp_tasks pointer to NULL,\nthen CPU2 might dereference that NULL pointer.\n\nThis commit therefore holds the rcu_node structure's ->lock while\naccessing that structure's->exp_tasks field.\n\n[ paulmck: Apply Frederic Weisbecker feedback. ]"
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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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"kernel/rcu/tree_exp.h"
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],
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"versions": [
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{
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"version": "314eeb43e5f22856b281c91c966e51e5782a3498",
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"lessThan": "a7d21b8585894e6fff973f6ddae42f02b13f600f",
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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": "314eeb43e5f22856b281c91c966e51e5782a3498",
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"lessThan": "e30a55e98ae6c44253d8b129efefd5da5bc6e3bc",
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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": "314eeb43e5f22856b281c91c966e51e5782a3498",
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"lessThan": "d0a8c0e31a09ec1efd53079083e2a677956b4d91",
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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": "314eeb43e5f22856b281c91c966e51e5782a3498",
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"lessThan": "2bc0ae94ef1f9ed322d8ee439de3239ea3632ab2",
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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": "314eeb43e5f22856b281c91c966e51e5782a3498",
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"lessThan": "3c1566bca3f8349f12b75d0a2d5e4a20ad6262ec",
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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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"kernel/rcu/tree_exp.h"
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],
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"versions": [
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{
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"version": "5.8",
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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": "5.8",
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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": "5.10.181",
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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": "5.15.113",
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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": "6.1.30",
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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": "6.3.4",
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"lessThanOrEqual": "6.3.*",
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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": "6.4",
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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": "5.8",
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"versionEndExcluding": "5.10.181"
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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": "5.8",
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"versionEndExcluding": "5.15.113"
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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": "5.8",
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"versionEndExcluding": "6.1.30"
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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": "5.8",
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"versionEndExcluding": "6.3.4"
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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": "5.8",
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"versionEndExcluding": "6.4"
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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/a7d21b8585894e6fff973f6ddae42f02b13f600f"
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},
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{
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"url": "https://git.kernel.org/stable/c/e30a55e98ae6c44253d8b129efefd5da5bc6e3bc"
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},
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{
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"url": "https://git.kernel.org/stable/c/d0a8c0e31a09ec1efd53079083e2a677956b4d91"
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},
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{
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"url": "https://git.kernel.org/stable/c/2bc0ae94ef1f9ed322d8ee439de3239ea3632ab2"
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},
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{
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"url": "https://git.kernel.org/stable/c/3c1566bca3f8349f12b75d0a2d5e4a20ad6262ec"
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}
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],
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"title": "rcu: Protect rcu_print_task_exp_stall() ->exp_tasks access",
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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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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "NONE"
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}
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},
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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-2023-53419",
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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": "2026-01-14T19:11:37.571782Z"
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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-476",
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"description": "CWE-476 NULL Pointer Dereference"
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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": "2026-01-14T19:13:10.365Z"
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}
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}
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]
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}
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} |