Vulnerability Intelligence Report
Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability
CVE-2026-34926
A directory traversal vulnerability in the Apex One (on-premise) server 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. This vulnerability is only exploitable on the on-premise version of Apex One and a potential attacker must have access to the Apex One Server and already obtained administrative credentials to the server via some other method to exploit this vulnerability.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
6.7
MEDIUM
Exploitability:0.9
Impact Score:5.3
EPSS Probability:12.68%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-23 ↗CWE-23: Relative Path Traversal
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Trend Micro, Inc. | TrendAI Apex One | 2019 (14.0) < 14.0.0.17079 (affected) |
| Trend Micro, Inc. | TrendAI Apex One as a Service | SaaS < 14.0.20731 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Trend Micro, Inc. · Vendor · Japan |
| Reserved | 2026-03-31T17:22:13 |
| Published | 2026-05-21T13:03:21 |
| Last Updated | 2026-05-22T12:47:07 |
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