# CVE-2026-34926

## Summary

- **CVE ID:** CVE-2026-34926
- **Severity:** MEDIUM
- **CVSS Score:** 6.7 (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L)
- **CWE:** CWE-23
- **Published:** May 21, 2026
- **Last Modified:** May 22, 2026

## Description

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.

## Affected Products

- Trend Micro, Inc. — TrendAI Apex One (2019 (14.0))
- Trend Micro, Inc. — TrendAI Apex One as a Service (SaaS)

## References

- [CNA](https://success.trendmicro.com/en-US/solution/KA-0023430)
- [CNA](https://success.trendmicro.com/ja-JP/solution/KA-0022974)
- [CNA](https://jvn.jp/en/vu/JVNVU90583059/)
- [CNA](https://www.jpcert.or.jp/english/at/2026/at260014.html)
- [CISA-ADP](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34926)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 12.68%
- **EPSS Percentile:** 96.0

## Known Exploited Vulnerabilities (KEV)

- **Date Added:** May 21, 2026
- **Due Date:** Jun 4, 2026

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._