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TI-2021-14868 Aliases CVE-2021-36742GHSA-h3hj-ff5j-498h

Improper input validation in Trend Micro Apex One

Priority CRITICAL 93Exploited in the wildCWE-20Published · 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 improper input validation vulnerability in Trend Micro Apex One, Apex One as a Service, OfficeScan XG and Worry-Free Business Security 10.0 SP1 allows a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Why it matters now

Exploitation Active In CISA KEV since 2021-11-03CISA due date 2021-11-17
EPSS 0.01482 74th 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 One2019, SaaS—No fix listedCNA
Trend MicroTrend Micro OfficeScanXG SP1—No fix listedCNA
Trend MicroTrend Micro Worry-Free Business Security10.0 SP1—No fix listedCNA
  • Trend Micro Apex One VendorTrend Micro Affected 2019, SaaS Fixed in — No fix listed CNA
  • Trend Micro OfficeScan VendorTrend Micro Affected XG SP1 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 · 5

CPEVersionsRoleVendor
cpe:2.3:a:trendmicro:officescan:xg:sp1:*:*:*:*:*:*xg sp1VulnerableTrendmicro
cpe:2.3:a:trendmicro:officescan_business_security:10.0:sp1:*:*:*:*:*:*10.0 sp1VulnerableTrendmicro
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:officescan:xg:sp1:*:*:*:*:*:* Versions xg sp1 Vulnerable ·Trendmicro
  • cpe:2.3:a:trendmicro:officescan_business_security:10.0:sp1:*:*:*:*:*:* Versions 10.0 sp1 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-2021-36742
  3. 2026-10-03 Alias added: GHSA-h3hj-ff5j-498h

References

Advisory 4

  • 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