232 lines
11 KiB
JSON
232 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-2026-49316",
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"assignerOrgId": "c15abc07-96a9-4d11-a503-5d621bfe42ba",
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"state": "PUBLISHED",
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"assignerShortName": "ASRG",
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"dateReserved": "2026-05-29T07:26:43.198Z",
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"datePublished": "2026-05-29T12:39:23.104Z",
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"dateUpdated": "2026-06-27T08:47:44.904Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "c15abc07-96a9-4d11-a503-5d621bfe42ba",
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"shortName": "ASRG",
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"dateUpdated": "2026-06-27T08:47:44.904Z"
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},
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"title": "Indian Scout Bobber 2025 WCM CAN bus-off attack silently bypasses anti-theft shutdown",
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"datePublic": "2026-05-29T15:00:00.000Z",
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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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"cweId": "CWE-440",
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"description": "CWE-440 Expected Behavior Violation",
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"type": "CWE"
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},
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{
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"lang": "en",
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"cweId": "CWE-754",
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"description": "CWE-754 Improper Check for Unusual or Exceptional Conditions",
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"type": "CWE"
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},
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{
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"lang": "en",
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"cweId": "CWE-693",
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"description": "CWE-693 Protection Mechanism Failure",
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"type": "CWE"
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}
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]
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}
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],
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"impacts": [
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{
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"descriptions": [
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{
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"lang": "en",
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"value": "Obstruction"
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}
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]
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},
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{
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"descriptions": [
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{
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"lang": "en",
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"value": "Software Integrity Attack"
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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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"vendor": "Indian Motorcycle",
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"product": "Scout Bobber + Tech",
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"platforms": [
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"OEM Motorcycle"
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],
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"modules": [
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"Wireless Control Module (WCM)"
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],
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"versions": [
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{
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"status": "affected",
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"version": "2025",
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"versionType": "model-year"
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}
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],
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"defaultStatus": "unknown"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "Expected behavior violation in the in-vehicle network of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker to bypass the motorcycle's anti-theft shutdown by forcing the Wireless Control Module (WCM) into the CAN bus-off state. Using a well-known CAN error-frame injection technique against a periodic WCM transmission, the attacker drives the WCM CAN controller's transmit error counter past the bus-off threshold, after which the WCM stops transmitting all messages, including the shutdown command. Peer ECUs do not interpret WCM silence as a security event and continue normal operation, allowing the motorcycle to be operated despite the immobilizer never having been unlocked. Specific protocol details have been withheld pending vendor remediation.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>Expected behavior violation in the in-vehicle network of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker to bypass the motorcycle's anti-theft shutdown by forcing the Wireless Control Module (WCM) into the CAN bus-off state. Using a well-known CAN error-frame injection technique against a periodic WCM transmission, the attacker drives the WCM CAN controller's transmit error counter past the bus-off threshold, after which the WCM stops transmitting all messages, including the shutdown command. Peer ECUs do not interpret WCM silence as a security event and continue normal operation, allowing the motorcycle to be operated despite the immobilizer never having been unlocked. Specific protocol details have been withheld pending vendor remediation.</p>"
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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://cwe.mitre.org/data/definitions/440.html",
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"tags": [
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"technical-description"
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]
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "PHYSICAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "HIGH",
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"baseSeverity": "MEDIUM",
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"baseScore": 4.6,
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"vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
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}
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},
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{
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV4_0": {
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"attackVector": "PHYSICAL",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "HIGH",
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"subAvailabilityImpact": "NONE",
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"exploitMaturity": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
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"version": "4.0",
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"baseSeverity": "MEDIUM",
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"baseScore": 4.1,
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"vectorString": "CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
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}
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}
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],
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"solutions": [
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{
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"lang": "en",
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"value": "Treat absence of the WCM heartbeat as a security event in peer ECUs — command shutdown if the WCM's periodic message is missing beyond a bounded interval. Authenticate the heartbeat with AUTOSAR SecOC or equivalent to prevent post-silence spoofing. Auto-recover the WCM from bus-off and log the event.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>Treat absence of the WCM heartbeat as a security event in peer ECUs — command shutdown if the WCM's periodic message is missing beyond a bounded interval. Authenticate the heartbeat with AUTOSAR SecOC or equivalent to prevent post-silence spoofing. Auto-recover the WCM from bus-off and log the event.</p>"
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}
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]
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}
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],
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"timeline": [
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{
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"time": "2025-03-26T00:00:00.000Z",
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"lang": "en",
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"value": "Reported to Indian Motorcycle by Rustic Security LLC (responsible disclosure)"
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "Scott Sheahan, Rustic Security LLC",
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"type": "finder"
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.2"
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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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"timestamp": "2026-05-29T15:26:52.193932Z",
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"id": "CVE-2026-49316",
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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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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2026-05-29T15:26:58.445Z"
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}
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}
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]
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}
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} |