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Vulnerability record · CVE-2020-8598 · published 18 March 2020

CVE-2020-8598: Trendmicro apex one missing authentication for critical function vulnerability

Trendmicro · Apex One

Trend Micro Apex One (2019), OfficeScan XG and Worry-Free Business Security (9.0, 9.5, 10.0) server contains a vulnerable service DLL file that could allow a remote attacker to execute arbitrary code on affected installations with SYSTEM level privileges. Authentication is not required to exploit this vulnerability.

9.8 CVSS 3.1 Critical EPSS 13% · top 3.7% CWE-306 · Missing authentication for critical function
9.8CVSS 3.1 base score, v2 10.0
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

Trend Micro Apex One (2019), OfficeScan XG and Worry-Free Business Security (9.0, 9.5, 10.0) server contains a vulnerable service DLL file that could allow a remote attacker to execute arbitrary code on affected installations with SYSTEM level privileges. Authentication is not required to exploit this vulnerability.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://success.trendmicro.com/jp/solution/000244253 PatchVendor Advisory
https://success.trendmicro.com/jp/solution/000244836 PatchVendor Advisory
https://success.trendmicro.com/solution/000245571 PatchVendor Advisory
https://success.trendmicro.com/solution/000245572 PatchVendor Advisory
https://success.trendmicro.com/jp/solution/000244253 PatchVendor Advisory
https://success.trendmicro.com/jp/solution/000244836 PatchVendor Advisory
https://success.trendmicro.com/solution/000245571 PatchVendor Advisory
https://success.trendmicro.com/solution/000245572 PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-54948Trend Micro Apex One management console OS command injectionThe on-premise Apex One management console contains an OS command injection flaw (CWE-78) that lets a remote attacker upload malicious code and run c…KEVEPSS 22%analysed9.8CVE-2022-26871Trend Micro Apex Central unauthenticated arbitrary file uploadTrend Micro Apex Central (and Apex One) contains an arbitrary file upload flaw caused by insufficient verification of data authenticity (CWE-345). An…KEVEPSS 19%analysed9.8CVE-2020-8599Trend Micro Apex One and OfficeScan EXE allows arbitrary file write and ROOT bypassTrend Micro Apex One (2019) and OfficeScan XG server ship a vulnerable EXE file that lets a remote, unauthenticated attacker write arbitrary data to …KEVEPSS 12%analysed8.8CVE-2021-36741Trend Micro Apex One and OfficeScan unrestricted file uploadTrend Micro Apex One, Apex One as a Service, OfficeScan XG and Worry-Free Business Security 10.0 SP1 fail to properly validate input, allowing an aut…KEVEPSS 5.0%analysed8.8CVE-2020-8468Trend Micro Apex One, OfficeScan and Worry-Free agents content validation escapeTrend Micro Apex One (2019), OfficeScan XG and Worry-Free Business Security (9.0, 9.5, 10.0) agents contain a content validation escape flaw (CWE-74)…KEVEPSS 6.2%analysed8.8CVE-2020-8467Trend Micro Apex One and OfficeScan migration tool RCEA component of the migration tool in Trend Micro Apex One (2019) and OfficeScan XG allows remote attackers to execute arbitrary code on affected inst…KEVEPSS 11%analysed7.8CVE-2021-36742Trend Micro Apex One and OfficeScan improper input validation privilege escalationTrend Micro Apex One, Apex One as a Service, OfficeScan XG and Worry-Free Business Security 10.0 SP1 contain an improper input validation flaw (CWE-2…KEVEPSS 1.5%analysed7.8CVE-2020-24557Trend Micro Apex One and Worry-Free Business Security folder manipulation privilege escalationTrend Micro Apex One and Worry-Free Business Security 10.0 SP1 on Windows allow an attacker to manipulate a product folder to temporarily disable the…KEVEPSS 2.7%analysed

Source: NIST National Vulnerability Database (record CVE-2020-8598), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.