CVE-2026-34926 — Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability
2026-05-21 • CISA Known Exploited Vulnerability
[event] Trend Micro Apex One (on-premise) contains a directory traversal vulnerability that could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations.
> AFFECTED SOFTWARE
| Field | Value |
|---|---|
| Vendor | Trend Micro |
| Product | Apex One |
| CWE | CWE-23 |
| CVE ID | CVE-2026-34926 |
| Date Added | 2026-05-21 |
| Due Date | 2026-06-04 |
| Ransomware Campaign | Unknown |
> MITIGATION
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Due Date: 2026-06-04