Trend Micro Apex One (2019), OfficeScan XG and Worry-Free Business Security (9.0, 9.5, 10.0) server contains a vulnerable service DLL file that could allow an attacker to delete any file on the server with SYSTEM level privileges. Authentication is not required to exploit this vulnerability.
Conclusion & alert: CVE-2020-8470 is rated Moderate Risk (64.9/100): CVSS High severity, with high exploitation likelihood (EPSS 4.47%, 90th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.35% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.12% | 4.47% | +3.35% |
| 2 | 2025-11-21 | 1.46% | 1.12% | -0.33% |
| 3 | 2025-11-18 | — | 1.46% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 9.4 | 2.0 | HIGH |
|
10.0 | 9.2 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| trendmicro | apex_one | 2019 | cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:*:*:*:* |
| trendmicro | officescan | xg | cpe:2.3:a:trendmicro:officescan:xg:*:*:*:*:*:*:* |
| trendmicro | officescan | xg | cpe:2.3:a:trendmicro:officescan:xg:sp1:*:*:*:*:*:* |
| trendmicro | worry-free_business_security | 9.0 | cpe:2.3:a:trendmicro:worry-free_business_security:9.0:sp3:*:*:*:*:*:* |
| trendmicro | worry-free_business_security | 9.5 | cpe:2.3:a:trendmicro:worry-free_business_security:9.5:*:*:*:*:*:*:* |
| trendmicro | worry-free_business_security | 10.0 | cpe:2.3:a:trendmicro:worry-free_business_security:10.0:-:*:*:*:*:*:* |
| trendmicro | worry-free_business_security | 10.0 | cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://success.trendmicro.com/jp/solution/000244253 | Patch Vendor Advisory |
| https://success.trendmicro.com/jp/solution/000244836 | Patch Vendor Advisory |
| https://success.trendmicro.com/solution/000245571 | Patch Vendor Advisory |
| https://success.trendmicro.com/solution/000245572 | Patch Vendor Advisory |