CVE-2020-24557

7.8 HIGH CISA KEV - Actively Exploited
Published: September 01, 2020 Modified: October 31, 2025

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://success.trendmicro.com/solution/000263632
Source: security@trendmicro.com
Vendor Advisory
https://success.trendmicro.com/solution/000267260
Source: security@trendmicro.com
Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1094/
Source: security@trendmicro.com
Third Party Advisory VDB Entry
https://success.trendmicro.com/solution/000263632
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://success.trendmicro.com/solution/000267260
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1094/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-24557
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

7 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
1.9%
83th percentile
Exploitation Status
Actively Exploited
Remediation due: 2022-05-03

Affected Vendors

trendmicro microsoft