CVE-2026-34926

Name: CVE-2026-34926
Creator: NVD / NIST
Published: 2026-05-21T14:16:45.213+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.7/10Actively ExploitedEPSS 12.68%

Last modified Jun 17, 2026

CVE-2026-34926 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 12.68% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.7/10

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

EPSS Probability

12.68%

95.8th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Jun 4, 2026.

Weakness Enumeration

CWE-23

Affected Software

Vendor	Product	Versions
Trendmicro	Apex One	< 14.0.0.17079
Trendmicro	Apex One	< 14.0.20731

References

https://jvn.jp/en/vu/JVNVU90583059/Third Party Advisory
https://success.trendmicro.com/en-US/solution/KA-0023430Vendor Advisory
https://success.trendmicro.com/ja-JP/solution/KA-0022974Vendor Advisory
https://www.jpcert.or.jp/english/at/2026/at260014.htmlThird Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34926Third Party Advisory, US Government Resource

Timeline

Published: May 21, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-34926?

How severe is CVE-2026-34926?

CVE-2026-34926 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 12.68% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2026-34926?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-34926?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST