CVE-2026-34926

{"id": "CVE-2026-34926", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@trendmicro.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.3, "exploitabilityScore": 0.8}]}, "published": "2026-05-21T14:16:45.213", "references": [{"url": "https://jvn.jp/en/vu/JVNVU90583059/", "tags": ["Third Party Advisory"], "source": "security@trendmicro.com"}, {"url": "https://success.trendmicro.com/en-US/solution/KA-0023430", "tags": ["Vendor Advisory"], "source": "security@trendmicro.com"}, {"url": "https://success.trendmicro.com/ja-JP/solution/KA-0022974", "tags": ["Vendor Advisory"], "source": "security@trendmicro.com"}, {"url": "https://www.jpcert.or.jp/english/at/2026/at260014.html", "tags": ["Third Party Advisory"], "source": "security@trendmicro.com"}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34926", "tags": ["Third Party Advisory", "US Government Resource"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@trendmicro.com", "description": [{"lang": "en", "value": "CWE-23"}]}], "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."}], "lastModified": "2026-05-22T12:47:18.583", "cisaActionDue": "2026-06-04", "cisaExploitAdd": "2026-05-21", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:trendmicro:apex_one:*:*:*:*:on-premises:windows:*:*", "vulnerable": true, "matchCriteriaId": "6F20657B-98A4-46BE-8481-12060262C850", "versionEndExcluding": "14.0.0.17079"}, {"criteria": "cpe:2.3:a:trendmicro:apex_one:*:*:*:*:saas:windows:*:*", "vulnerable": true, "matchCriteriaId": "322053CC-D396-412E-9F81-7640FE9DB7BD", "versionEndExcluding": "14.0.20731"}], "operator": "OR"}]}], "sourceIdentifier": "security@trendmicro.com", "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"}