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TI-2020-15038 Aliases CVE-2020-24557GHSA-rf37-cmcm-645m

A vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 on…

Priority CRITICAL 93Exploited in the wildPublished · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Active In CISA KEV since 2021-11-03CISA due date 2022-05-03
EPSS 0.02666 85th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Trend MicroTrend Micro Apex One2009 (on premise), SaaS—No fix listedCNA
Trend MicroTrend Micro Worry-Free Business Security10.0 SP1—No fix listedCNA
  • Trend Micro Apex One VendorTrend Micro Affected 2009 (on premise), SaaS Fixed in — No fix listed CNA
  • Trend Micro Worry-Free Business Security VendorTrend Micro Affected 10.0 SP1 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:trendmicro:apex_one:-:*:*:*:saas:*:*:*not specified by NVDVulnerableTrendmicro
cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:*:*:*:*2019VulnerableTrendmicro
cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:*:*:*:*:*:*10.0 sp1VulnerableTrendmicro
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:trendmicro:apex_one:-:*:*:*:saas:*:*:* Versions not specified by NVD Vulnerable ·Trendmicro
  • cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:*:*:*:* Versions 2019 Vulnerable ·Trendmicro
  • cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:*:*:*:*:*:* Versions 10.0 sp1 Vulnerable ·Trendmicro
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2021-11-03 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2020-24557
  3. 2026-10-03 Alias added: GHSA-rf37-cmcm-645m

References

Advisory 3

  • TI-2025-34668 OS command injection in Trend Micro Apex One KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-10115 Insufficient verification of data authenticity in Trend Micro Apex Central KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-06895 Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that… KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-14867 Unrestricted file upload in Trend Micro Apex One KEVCVSS 3.1HIGH 8.8
  • TI-2020-06795 Injection in Trend Micro OfficeScan, Trend Micro Apex One, Trend Micro Worry-Free… KEVCVSS 3.1HIGH 8.8
  • TI-2020-06794 A migration tool component of Trend Micro Apex One (2019) and OfficeScan XG contains a… KEVCVSS 3.1HIGH 8.8
See all 603 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences