Trend Micro TrendAI Apex One/TrendAI Apex One as a Service origin validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Trend Micro TrendAI Apex One and TrendAI Apex One as a Service. Affected is an unknown function. This manipulation causes origin validation. This vulnerability appears as CVE-2026-34927. The attack requires local access. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Trend Micro TrendAI Apex One and TrendAI Apex One as a Service (affected version unknown). Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a origin validation vulnerability. The CWE definition for the vulnerability is CWE-346. The product does not properly verify that the source of data or communication is valid. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An origin validation vulnerability in the Apex One/SEP agent could allow a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

It is possible to read the advisory at success.trendmicro.com. This vulnerability is known as CVE-2026-34927 since 03/31/2026. The exploitation appears to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/22/2026).

The vulnerability scanner Nessus provides a plugin with the ID 316481 (Trend Micro Apex One < SP1 (b17079) Multiple Vulnerabilities (KA-0023430)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (316481), EUVD (EUVD-2026-31285) and CERT Bund (WID-SEC-2026-1643). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Trend Micro Apex One

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (trendmicro): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Origin validation
CWE: CWE-346 / CWE-345
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 316481
Nessus Name: Trend Micro Apex One < SP1 (b17079) Multiple Vulnerabilities (KA-0023430)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/31/2026 CVE reserved
05/21/2026 +51 days Advisory disclosed
05/21/2026 +0 days VulDB entry created
05/22/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: trendmicro.com

Advisory: success.trendmicro.com
Status: Confirmed

CVE: CVE-2026-34927 (🔒)
GCVE (CVE): GCVE-0-2026-34927
GCVE (VulDB): GCVE-100-365023
EUVD: 🔒
CERT Bund: WID-SEC-2026-1643 - Trend Micro Apex One: Mehrere Schwachstellen erm&ouml;glichen Privilegieneskalation und die Ausf&uuml;hrung von Code

Entryinfo

Created: 05/21/2026 16:40
Updated: 05/22/2026 23:07
Changes: 05/21/2026 16:40 (61), 05/22/2026 07:16 (1), 05/22/2026 12:06 (7), 05/22/2026 23:07 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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