Secuno
ENNL
Book demo

CVE-2026-34926

Trend Micro Apex One (On-Premise) Directory Traversal

6.7 MEDIUMActively exploited (CISA KEV)EPSS 0.54%
  1. Published21 May 2026
  2. Added to CISA KEV21 May 2026
  3. Remediation due4 Jun 2026
Actively exploited (CISA KEV)

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.

Added to KEV: 21 May 2026Federal remediation due: 4 Jun 2026

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.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityHigh
Privileges requiredHigh
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L

Affected products

Trend Micro Apex One< 14.0.0.17079 · < 14.0.20731

Remediation

Fixed in
Trend Micro Apex One≥ 14.0.0.17079

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-1010248.8
Satel Netco Design versions prior to v2.1.7 contains a relative path traversal…
CVE-2026-764549.1
A vulnerability in the Cisco Smart Licensing Utility API of Cisco License On-Prem,…
CVE-2026-80669.1
A directory traversal vulnerability in the file upload functionality of Hitachi Energy…
CVE-2026-764409.8
As part of Cisco's ongoing commitment to proactive security and product quality, the…
CVE-2026-827688.1
Path traversal vulnerability exists in SGA1000. If this vulnerability is exploited,…
CVE-2026-827658.1
Path traversal vulnerability exists in Contec FX5000 series, FX4000 series, and FX3000…

Frequently asked

Is CVE-2026-34926 being actively exploited?

Yes. CVE-2026-34926 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 21 May 2026.

How severe is CVE-2026-34926?

CVE-2026-34926 has a CVSS 3.1 base score of 6.7, rated medium. EPSS estimates a 0.54% probability of exploitation.

Which products are affected by CVE-2026-34926?

Affected products include Trend Micro Apex One.

How do I fix CVE-2026-34926?

Upgrade affected software to a fixed version, for example Trend Micro Apex One 14.0.0.17079 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-34926 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.