{"id":"CVE-2020-8599","aliases":["EUVD-2020-29447","GHSA-r3h3-2xcv-m95h"],"status":"published","title":"Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that could...","description":"Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that could allow a remote attacker to write arbitrary data to an arbitrary path on affected installations and bypass ROOT login. Authentication is not required to exploit this vulnerability.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.11858,"percentile":0.96123,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2020-03-18T00:30:44Z","modified":"2026-06-17T03:26:37Z","kev":{"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2021-11-03"},{"source":"kev","since":"2021-11-03"}],"products":[{"vendor":"trend micro","product":"apex one and officescan"},{"vendor":"trend micro","product":"trend micro officescan, trend micro apex one"},{"vendor":"trendmicro","product":"apex_one"},{"vendor":"trendmicro","product":"officescan"}],"references":[{"url":"https://success.trendmicro.com/solution/000245571","tags":["x_refsource_MISC","x_transferred","Broken Link","Patch","Vendor Advisory"]},{"url":"https://success.trendmicro.com/jp/solution/000244253","tags":["x_refsource_MISC","x_transferred","Broken Link","Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8599","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8599"},{"url":"https://github.com/advisories/GHSA-r3h3-2xcv-m95h"}],"sources":{"cve":[{"id":"CVE-2020-8599","description":"Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that could allow a remote attacker to write arbitrary data to an arbitrary path on affected installations and bypass ROOT login. 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Authentication is not required to exploit this vulnerability.","status":"published","published":"2022-05-24T17:11:51Z","modified":"2025-10-22T00:32:53Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:04:07.112106Z"}],"kev":[{"id":"CVE-2020-8599","title":"Trend Micro Apex One and OfficeScan Authentication Bypass Vulnerability","description":"Trend Micro Apex One and OfficeScan server contain a vulnerable EXE file that could allow a remote attacker to write data to a path on affected installations and bypass root login.","kev":{"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:17.050017Z"}],"nvd":[{"id":"CVE-2020-8599","description":"Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that could allow a remote attacker to write arbitrary data to an arbitrary path on affected installations and bypass ROOT login. Authentication is not required to exploit this vulnerability.","status":"published","published":"2020-03-18T01:15:12.223Z","modified":"2026-06-17T03:26:37.31Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:05:56.580228Z"}]}}