Vulnerability Intelligence Report
Trend Micro Multiple Products Improper Input Validation Vulnerability
CVE-2021-36742
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.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:1.48%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-20 ↗CWE-20 Improper Input Validation
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Trend Micro | Trend Micro Apex One | 2019, SaaS (affected) |
| Trend Micro | Trend Micro OfficeScan | XG SP1 (affected) |
| Trend Micro | Trend Micro Worry-Free Business Security | 10.0 SP1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Trend Micro, Inc. · Vendor · Japan |
| Reserved | 2021-07-14T00:00:00 |
| Published | 2021-07-29T19:23:14 |
| Last Updated | 2025-10-21T23:25:39 |
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