235 lines
9.7 KiB
JSON
235 lines
9.7 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-2026-23920",
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"assignerOrgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8",
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"state": "PUBLISHED",
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"assignerShortName": "Zabbix",
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"dateReserved": "2026-01-19T14:02:54.327Z",
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"datePublished": "2026-03-24T18:27:52.882Z",
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"dateUpdated": "2026-03-26T03:55:29.372Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8",
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"shortName": "Zabbix",
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"dateUpdated": "2026-03-24T18:27:52.882Z"
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},
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"title": "Host and event action script regex validation can be bypassed in certain situations, leading to potential command injection",
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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-78",
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"description": "CWE-78 CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
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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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"capecId": "CAPEC-88",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-88: OS Command Injection"
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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": "Zabbix",
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"product": "Zabbix",
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"repo": "https://git.zabbix.com/",
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"modules": [
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"Server",
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"Proxy"
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],
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"versions": [
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{
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"status": "affected",
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"version": "7.0.0",
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"lessThanOrEqual": "7.0.21",
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"changes": [
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{
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"at": "7.0.22",
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"status": "unaffected"
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}
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],
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"versionType": "git"
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},
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{
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"status": "affected",
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"version": "7.2.0",
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"lessThanOrEqual": "7.2.14",
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"changes": [
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{
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"at": "7.2.15",
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"status": "unaffected"
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}
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],
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"versionType": "git"
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},
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{
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"status": "affected",
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"version": "7.4.0",
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"lessThanOrEqual": "7.4.5",
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"changes": [
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{
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"at": "7.4.6",
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"status": "unaffected"
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}
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],
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"versionType": "git"
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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": "Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands.",
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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>Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands.</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://support.zabbix.com/browse/ZBX-27639"
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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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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH",
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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": "HIGH",
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"baseScore": 7.7,
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
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}
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}
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],
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"configurations": [
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{
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"lang": "en",
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"value": "Authenticated users with script execution permissions can bypass ^ and $ regex validation by injecting a newline character.",
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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>Authenticated users with script execution permissions can bypass ^ and $ regex validation by injecting a newline character.</p>"
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}
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]
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}
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],
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"workarounds": [
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{
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"lang": "en",
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"value": "It is possible to use \\A and \\z anchors in the regex validation as a workaround.",
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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>It is possible to use \\A and \\z anchors in the regex validation as a workaround.</p>"
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}
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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": "Update the affected components to their respective fixed versions.",
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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>Update the affected components to their respective fixed versions.</p>"
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}
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]
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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": "Zabbix wants to thank YoKo Kho (@YoKoAcc) from PT ITSEC Asia, Tbk for submitting this report on the HackerOne bug bounty platform.",
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"type": "reporter"
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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 1.0.1"
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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": "2026-03-25T00:00:00+00:00",
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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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"role": "CISA Coordinator",
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"version": "2.0.3",
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"id": "CVE-2026-23920"
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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": "2026-03-26T03:55:29.372Z"
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}
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}
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]
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}
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} |