Trend Micro — known exploited vulnerabilities
The CISA Known Exploited Vulnerabilities catalog (KEV) lists vulnerabilities that CISA has confirmed are being exploited in the wild; U.S. federal civilian agencies are required to remediate each entry by its due date. This page joins the KEV entries for Trend Micro with NVD CVSS scores and CISA's ransomware-campaign flag. See our methodology or browse all CVEs.
Key findings
CISA's Known Exploited Vulnerabilities catalog lists 12 Trend Micro vulnerabilities confirmed as exploited in the wild across 9 products; none are currently flagged as used in known ransomware campaigns. Apex One, Apex One and OfficeScan and Apex One, Apex One as a Service, and Worry-Free Business Security are tied as the most-affected products, with 2 entries each (17% of the total each). CISA added 1 entry in 2026 so far, compared with 1 in 2025. Across the 12 entries with an NVD CVSS score (100% of the total), the average score is 8.3; 3 entries are rated critical by NVD. The most recent addition is CVE-2026-34926 (Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability), added on 2026-05-21.
Affected products
| Product | Entries | Share |
|---|---|---|
| Apex One | 2 | 17% |
| Apex One and OfficeScan | 2 | 17% |
| Apex One, Apex One as a Service, and Worry-Free Business Security | 2 | 17% |
| Apex One and Worry-Free Business Security | 1 | 8.3% |
| Apex One and Apex One as a Service | 1 | 8.3% |
| Apex Central | 1 | 8.3% |
| OfficeScan | 1 | 8.3% |
| Apex One, OfficeScan and Worry-Free Business Security Agents | 1 | 8.3% |
| Apex One, OfficeScan, and Worry-Free Business Security | 1 | 8.3% |
Entries added per year
By date added to the KEV catalog
Exploited Trend Micro vulnerabilities (12)
Newest first. CVSS scores from NVD where available.
| CVE | Product | Vulnerability | Date added | Ransomware | CVSS |
|---|---|---|---|---|---|
| CVE-2026-34926 | Apex One | Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability | 2026-05-21 | — | MEDIUM6.7 |
| CVE-2025-54948 | Apex One | Trend Micro Apex One OS Command Injection Vulnerability | 2025-08-18 | — | CRITICAL9.4 |
| CVE-2023-41179 | Apex One and Worry-Free Business Security | Trend Micro Apex One and Worry-Free Business Security Remote Code Execution Vulnerability | 2023-09-21 | — | HIGH7.2 |
| CVE-2022-40139 | Apex One and Apex One as a Service | Trend Micro Apex One and Apex One as a Service Improper Validation Vulnerability | 2022-09-15 | — | HIGH7.2 |
| CVE-2022-26871 | Apex Central | Trend Micro Apex Central Arbitrary File Upload Vulnerability | 2022-03-31 | — | CRITICAL9.8 |
| CVE-2019-18187 | OfficeScan | Trend Micro OfficeScan Directory Traversal Vulnerability | 2021-11-03 | — | HIGH7.5 |
| CVE-2020-8467 | Apex One and OfficeScan | Trend Micro Apex One and OfficeScan Remote Code Execution Vulnerability | 2021-11-03 | — | HIGH8.8 |
| CVE-2020-8468 | Apex One, OfficeScan and Worry-Free Business Security Agents | Trend Micro Multiple Products Content Validation Escape Vulnerability | 2021-11-03 | — | HIGH8.8 |
| CVE-2020-24557 | Apex One, OfficeScan, and Worry-Free Business Security | Trend Micro Multiple Products Improper Access Control Vulnerability | 2021-11-03 | — | HIGH7.8 |
| CVE-2020-8599 | Apex One and OfficeScan | Trend Micro Apex One and OfficeScan Authentication Bypass Vulnerability | 2021-11-03 | — | CRITICAL9.8 |
| CVE-2021-36742 | Apex One, Apex One as a Service, and Worry-Free Business Security | Trend Micro Multiple Products Improper Input Validation Vulnerability | 2021-11-03 | — | HIGH7.8 |
| CVE-2021-36741 | Apex One, Apex One as a Service, and Worry-Free Business Security | Trend Micro Multiple Products Improper Input Validation Vulnerability | 2021-11-03 | — | HIGH8.8 |
Source: CISA Known Exploited Vulnerabilities catalog, joined with NIST NVD CVSS data. Vendor names are normalized across spellings. Compare all vendors.