{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:trendmicro:apexone_op:14.0.0.17079:*:*:*:*:*:*:*"], "product": "TrendAI Apex One", "vendor": "Trend Micro, Inc.", "versions": [{"lessThan": "14.0.0.17079", "status": "affected", "version": "2019 (14.0)", "versionType": "semver"}]}, {"cpes": ["cpe:2.3:a:trendmicro:apexone_saas:14.0.0.20731:*:*:*:*:*:*:*"], "product": "TrendAI Apex One as a Service", "vendor": "Trend Micro, Inc.", "versions": [{"lessThan": "14.0.20731", "status": "affected", "version": "SaaS", "versionType": "semver"}]}], "source": "security@trendmicro.com"}], "cisaActionDue": "2026-06-04", "cisaExploitAdd": "2026-05-21", "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.", "cisaVulnerabilityName": "Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:trendmicro:apex_one:*:*:*:*:on-premises:windows:*:*", "matchCriteriaId": "6F20657B-98A4-46BE-8481-12060262C850", "versionEndExcluding": "14.0.0.17079", "vulnerable": true}, {"criteria": "cpe:2.3:a:trendmicro:apex_one:*:*:*:*:saas:windows:*:*", "matchCriteriaId": "322053CC-D396-412E-9F81-7640FE9DB7BD", "versionEndExcluding": "14.0.20731", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A directory traversal vulnerability in the Apex One (on-premise) server could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations.\n\n\r\nThis vulnerability is only exploitable on the on-premise version of Apex One and a potential attacker must have access to the Apex One Server and already obtained administrative credentials to the server via some other method to exploit this vulnerability."}, {"lang": "es", "value": "Una vulnerabilidad de salto de directorio en el servidor Apex One (local) podr\u00eda permitir a un atacante local preautenticado modificar una tabla clave en el servidor para inyectar c\u00f3digo malicioso y desplegarlo en agentes de instalaciones afectadas.\n\nEsta vulnerabilidad solo es explotable en la versi\u00f3n local de Apex One y un atacante potencial debe tener acceso al servidor Apex One y haber obtenido ya credenciales administrativas para el servidor mediante alg\u00fan otro m\u00e9todo para explotar esta vulnerabilidad."}], "id": "CVE-2026-34926", "lastModified": "2026-07-23T16:10:00.137", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.3, "source": "security@trendmicro.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-34926", "options": [{"exploitation": "active"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-05-22T03:55:44.534070Z", "version": "2.0.3"}}]}, "published": "2026-05-21T14:16:45.213", "references": [{"source": "security@trendmicro.com", "tags": ["Third Party Advisory"], "url": "https://jvn.jp/en/vu/JVNVU90583059/"}, {"source": "security@trendmicro.com", "tags": ["Vendor Advisory"], "url": "https://success.trendmicro.com/en-US/solution/KA-0023430"}, {"source": "security@trendmicro.com", "tags": ["Vendor Advisory"], "url": "https://success.trendmicro.com/ja-JP/solution/KA-0022974"}, {"source": "security@trendmicro.com", "tags": ["Third Party Advisory"], "url": "https://www.jpcert.or.jp/english/at/2026/at260014.html"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Third Party Advisory", "US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34926"}], "sourceIdentifier": "security@trendmicro.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-23"}], "source": "security@trendmicro.com", "type": "Secondary"}]}