Answer in brief
CVE-2020-24557 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Trend Micro/Trend Micro Apex One (generic), Trend Micro/Trend Micro Worry-Free Business Security (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Trend Micro/Trend Micro Apex One (generic), Trend Micro/Trend Micro Worry-Free Business Security (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Trend Micro/Trend Micro Apex Onegeneric | 2009 (on premise), SaaS | Not reported |
| Trend Micro/Trend Micro Worry-Free Business Securitygeneric | 10.0 SP1 | Not reported |
Published upstream
Sep 1, 2020
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Nov 3, 2021
Evidence: source:kev:kev:kev:recordA 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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2020-24557 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Trend Micro/Trend Micro Apex One (generic), Trend Micro/Trend Micro Worry-Free Business Security (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Trend Micro/Trend Micro Apex One (generic), Trend Micro/Trend Micro Worry-Free Business Security (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Trend Micro/Trend Micro Apex Onegeneric | 2009 (on premise), SaaS | Not reported |
| Trend Micro/Trend Micro Worry-Free Business Securitygeneric | 10.0 SP1 | Not reported |
Published upstream
Sep 1, 2020
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Nov 3, 2021
Evidence: source:kev:kev:kev:recordA 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.
Quoted source text, attributed separately from HOL analysis.