{"id":"CVE-2026-34926","aliases":["EUVD-2026-31284","GHSA-4ccp-cqrh-3w9v"],"status":"published","title":"A directory traversal vulnerability in the Apex One (on-premise) server could allow a pre...","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.","severity":{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.1342,"percentile":0.96478,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-23"],"published":"2026-05-21T13:03:21Z","modified":"2026-07-23T16:10:00Z","kev":{"date_added":"2026-05-21","due_date":"2026-06-04","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2026-05-21"},{"source":"kev","since":"2026-05-21"}],"exploits":[{"source":"pocgithub","id":"HORKimhab/CVE-2026-34926","title":"HORKimhab/CVE-2026-34926","date":"2026-05-22","url":"https://github.com/HORKimhab/CVE-2026-34926"}],"products":[{"vendor":"trend micro","product":"apex one"},{"vendor":"trend micro, inc.","product":"trendai apex one"},{"vendor":"trend micro, inc.","product":"trendai apex one as a service"},{"vendor":"trendmicro","product":"apex_one"}],"references":[{"url":"https://success.trendmicro.com/en-US/solution/KA-0023430","tags":["Vendor Advisory"]},{"url":"https://success.trendmicro.com/ja-JP/solution/KA-0022974","tags":["Vendor Advisory"]},{"url":"https://jvn.jp/en/vu/JVNVU90583059/","tags":["Third Party Advisory"]},{"url":"https://www.jpcert.or.jp/english/at/2026/at260014.html","tags":["Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34926","tags":["government-resource","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34926"},{"url":"https://jvn.jp/en/vu/JVNVU90583059"},{"url":"https://github.com/advisories/GHSA-4ccp-cqrh-3w9v"}],"sources":{"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.","status":"published","published":"2026-05-21T13:03:21.164Z","modified":"2026-05-22T12:47:07.213Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-23"],"updated_at":"2026-11-02T14:20:14.302133Z"}],"euvd":[{"id":"EUVD-2026-31284","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.","status":"published","published":"2026-05-21T13:03:21Z","modified":"2026-05-22T12:47:07Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L","level":"medium"}],"exploited_since":"2026-05-21","updated_at":"2026-11-02T18:21:12.491464Z"}],"ghsa":[{"id":"GHSA-4ccp-cqrh-3w9v","title":"A directory traversal vulnerability in the Apex One (on-premise) server could allow a pre...","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\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.","status":"published","published":"2026-05-21T15:34:09Z","modified":"2026-05-21T21:30:33Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L","level":"medium"}],"cwes":["CWE-23"],"updated_at":"2026-11-02T15:08:15.652571Z"}],"kev":[{"id":"CVE-2026-34926","title":"Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability","description":"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.","cwes":["CWE-23"],"kev":{"date_added":"2026-05-21","due_date":"2026-06-04","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:15.999436Z"}],"nvd":[{"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.","status":"published","published":"2026-05-21T14:16:45.213Z","modified":"2026-07-23T16:10:00.137Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-23"],"updated_at":"2026-11-02T14:12:19.752984Z"}]}}