CVE-2026-34926

6.7 MEDIUM 13% exploit odds exploited in the wild Fix listed Disclosure Server

What it is

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.

At a glance

Exploitability: Can be exploited locally on the machine with an admin-level account. High risk of data exposure.
In the wild: CISA lists this as exploited in real attacks. Treat as urgent.
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-03-31 17:22 UTC ReservedThe CVE id was reserved by its CNA
2026-05-21 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
2026-05-21 14:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-04 Remediation deadlineCISA's due date for federal agencies to fix it
2026-07-23 16:10 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
Exploit odds: 13.4% in the next 30 days (EPSS).
Severity: 6.7 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2026-05-21 14:16 UTC
Last modified: 2026-07-23 16:10 UTC
Added to CISA KEV: 2026-05-21
Exploit probability: 13.4% · EPSS, next 30 days
Weakness: CWE-23
Record status: Analyzed

Affected

Trendmicro Apex One < 14.0.0.17079
Trendmicro Apex One < 14.0.20731

Attack profile CVSS 3.1 · 6.7

Attack vector: Local
Complexity: High
Privileges needed: High
User interaction: None
Scope: Changed
Confidentiality: High
Integrity: Low
Availability: Low

Raw vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-34926.md and follow it. Check whether this project is affected by CVE-2026-34926. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record