Vulnerability Intelligence Report
Trend Micro Multiple Products Improper Access Control Vulnerability
CVE-2020-24557
A vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 on Microsoft Windows may allow an attacker to manipulate a particular product folder to disable the security temporarily, abuse a specific Windows function and attain privilege escalation. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. Please note that version 1909 (OS Build 18363.719) of Microsoft Windows 10 mitigates hard links, but previous versions are affected.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:2.64%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
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Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Trend Micro | Trend Micro Apex One | 2009 (on premise), SaaS (affected) |
| Trend Micro | Trend Micro Worry-Free Business Security | 10.0 SP1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Trend Micro, Inc. · Vendor · Japan |
| Reserved | 2020-08-20T00:00:00 |
| Published | 2020-09-01T18:55:27 |
| Last Updated | 2025-10-21T23:35:37 |
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