{"identifier":"CVE-2026-34926","cve":{"id":"CVE-2026-34926","description":"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.","published":"2026-05-21T14:16:45.213000+00:00","modified":"2026-07-23T16:10:00.137000+00:00","status":"Analyzed","score":6.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L","cvss_version":"3.1","affected":[{"criteria":"cpe:2.3:a:trendmicro:apex_one:*:*:*:*:on-premises:windows:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"14.0.0.17079"},{"criteria":"cpe:2.3:a:trendmicro:apex_one:*:*:*:*:saas:windows:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"14.0.20731"}],"weaknesses":["CWE-23"],"references":[{"url":"https://jvn.jp/en/vu/JVNVU90583059/","source":"security@trendmicro.com","tags":["Third Party 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":["Vendor Advisory"]},{"url":"https://www.jpcert.or.jp/english/at/2026/at260014.html","source":"security@trendmicro.com","tags":["Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34926","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Third Party Advisory","US Government Resource"]}],"kev":{"cveID":"CVE-2026-34926","vendorProject":"Trend Micro","product":"Apex One","vulnerabilityName":"Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability","dateAdded":"2026-05-21","shortDescription":"Trend Micro Apex One (on-premise) contains a directory traversal vulnerability that 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.","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","dueDate":"2026-06-04","knownRansomwareCampaignUse":"Unknown","forensicTriage":"No","notes":"https://success.trendmicro.com/en-US/solution/KA-0023430 ; 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