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Fencer Vulns
medium 6.7

CVE-2026-34926 kev in the critical feed json

A directory traversal vulnerability in the Apex One (on-premise) server could allow a pre-authenticated local attacker to modify a key tabl…

published 2026-05-21 5 mo ago modified 2026-07-23 3 mo ago also EUVD-2026-31284

cvss
6.7
version 3.1, CNA
cisa kev
Exploited
added 2026-05-21
epss
13.4%
EPSS 13.4% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

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.

Patch / fix

cisa 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.

  • Trend Micro, Inc. TrendAI Apex One 14.0.0.17079
  • Trend Micro, Inc. TrendAI Apex One as a Service 14.0.20731

Timeline

  1. Added to CISA KEV
  2. Published
  3. CISA SSVC: exploitation active
  4. CISA patch deadline

Known exploited

Added
5 mo ago
Patch by
2026-06-04 (5 mo ago)
Ransomware
Not known
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.
Vendor, product
Trend Micro, Apex One
CISA name
Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
5 mo ago

Exploit prediction

13.42% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.7 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L

Affected products

  • Trend Micro, Inc. TrendAI Apex One
  • Trend Micro, Inc. TrendAI Apex One as a Service

Classification

Weakness
  • CWE-23 Relative Path Traversal

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.