CVE-2026-34926

MEDIUM

6.7

CVSS Score

Published: May 21, 2026 at 01:03 PM UTC

Updated: July 23, 2026 at 07:32 PM UTC

1 product affected across 1 vendorApex One

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Severity

MEDIUM6.7

Exploitation

CISA KEV

Exploit prediction

EPSS 13%

SSVC

Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score13.4%

EPSS (Exploit Prediction Scoring System) estimates a 13.4% chance this CVE is exploited in the wild within the next 30 days — higher than 96% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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.

Required Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Ransomware Use

Unknown

Added to KEV

May 21, 2026

Remediation Due

Jun 4, 2026

152 days overdue

Notes

https://success.trendmicro.com/en-US/solution/KA-0023430

https://nvd.nist.gov/vuln/detail/CVE-2026-34926

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.