Skip to content
Actively exploitedCVSS 6.7 · MEDIUM

CVE-2026-34926

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.

View on NVD

Severity

Score: 6.7(MEDIUM)
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L
AV: LOCAL
AC: HIGH
PR: HIGH
UI: NONE
S: CHANGED
C: HIGH
I: LOW
A: LOW
Weakness (CWE): CWE-23

CISA KEV

Added to KEV: 2026-05-21
Federal patch deadline: 2026-06-04
Known ransomware use: Unknown
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.

EPSS

Probability of exploitation (next 30 days): 0.0025 (0.3%)
Percentile: 48.7%
EPSS: 2026-05-23

Technical 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.

Published: 5/21/2026, 2:16:45 PM
Last modified: 5/21/2026, 8:16:14 PM

References

HomeEventsBlogResourcesTeam