boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2020-24557

Trend Micro Apex One, OfficeScan, and Worry-Free Business Security
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  H  H  H    7.8   .0267   85.5   YES
AFFECTED
  Product                                   Versions                   Fixed
  Trend Micro Apex One                      2009 (on premise), SaaS –  —
  Trend Micro Worry-Free Business Security  10.0 SP1 –                 —
TIMELINE
  Aug 20  Reserved by trendmicro
  Sep 1   Published (CNA: trendmicro)
  Nov 3   Added to CISA KEV, remediation due 2022-05-03
CNA: trendmicro · CVSS v3.1 · 4 references · KEV due May 3, 2022

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.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
August 20, 2020ReservedReserved by trendmicro
September 1, 2020PublishedPublished (CNA: trendmicro)
November 3, 2021KEV ADDEDAdded to CISA KEV, remediation due 2022-05-03

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
Trend MicroTrend Micro Apex One—2009 (on premise), SaaS—
Trend MicroTrend Micro Worry-Free Business Security—10.0 SP1—

References (4)

Related

Authoritative record: CVE-2020-24557 at cve.org

Vendors: trend micro

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2020-24557 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.