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VulnerabilityPublished

CVE-2026-34926: Trend Micro TrendAI Apex One · Relative Path Traversal

Affects Trend Micro TrendAI Apex OneSource CVE Database V5

0
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Exploited in the wild · KEV due 4 Jun 2026 · 13% EPSS : apply the vendor's fix or mitigations to Trend Micro TrendAI Apex One now.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
6.7Medium
How severe the flaw is on the 0–10 CVSS scale.
KEV deadline
 US federal agencies must patch by this date; a sensible deadline for everyone else. Other KEV due dates
EPSS
13.4% chance of exploitation in 30 days – higher than 96% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

  1. Disclosed: evidence found.

    CVE published 21 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: evidence found.

    Listed in CISA KEV the same day as disclosure

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

Timeline

  1. CVE ID reserved

    by Trend Micro, Inc.

    , 51 days before disclosure

  2. CVE published

    on cve.org

    , t = 0

  3. In Threat Radar

    record ingested

    , 41 minutes after disclosure

  4. , the same day as disclosure

  5. KEV remediation due

    US federal deadline

    , 14 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

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

Affected software

ProductAffectedFixed in
Trend Micro, Inc.TrendAI Apex OneAffected
  • ≥ 2019 (14.0), < 14.0.0.17079
Fixed in–
Trend Micro, Inc.TrendAI Apex One as a ServiceAffected
  • ≥ SaaS, < 14.0.20731
Fixed in–

CPE configurations (2)

  • cpe:2.3:a:trendmicro:apexone_op:14.0.0.17079:*:*:*:*:*:*:*
  • cpe:2.3:a:trendmicro:apexone_saas:14.0.0.20731:*:*:*:*:*:*:*

Description

CVE-2026-34926 is a directory traversal vulnerability in the on-premise version of Trend Micro's TrendAI Apex One server. It allows a pre-authenticated local attacker with administrative credentials on the server to modify a key table, potentially injecting malicious code that could be deployed to agents. Exploitation requires prior administrative access to the Apex One server and is limited to the on-premise deployment. The vulnerability has a CVSS score of 6.7, indicating medium severity. No official patch or remediation information is currently available, and no known exploits are reported in the wild.

References

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