VDB-365025 · CVE-2026-34929 · EUVD-2026-31280

Trend Micro TrendAI Apex One/TrendAI Apex One as a Service Inter-Process Communication origin validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.6	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Trend Micro TrendAI Apex One and TrendAI Apex One as a Service and classified as critical. Affected by this issue is some unknown functionality of the component Inter-Process Communication. Performing a manipulation results in origin validation. This vulnerability is known as CVE-2026-34929. Attacking locally is a requirement. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Trend Micro TrendAI Apex One and TrendAI Apex One as a Service (the affected version unknown). This affects an unknown part of the component Inter-Process Communication. The manipulation with an unknown input leads to a origin validation vulnerability. CWE is classifying the issue as CWE-346. The product does not properly verify that the source of data or communication is valid. This is going to have an impact on 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. This is similar to CVE-2026-34927 but exists in a different inter-process communication mechanism. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The advisory is shared at success.trendmicro.com. This vulnerability is uniquely identified as CVE-2026-34929 since 03/31/2026. The exploitability is told to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/22/2026).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2026-31280) and CERT Bund (WID-SEC-2026-1643). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

Trend Micro Apex One

Productinfo

Type

Endpoint Management Software

Vendor

Trend Micro

Name

License

commercial

Website

Vendor: https://www.trendmicro.com/

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

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-2026-34929 (🔒)
GCVE (CVE): GCVE-0-2026-34929
GCVE (VulDB): GCVE-100-365025
EUVD: 🔒
CERT Bund: WID-SEC-2026-1643 - Trend Micro Apex One: Mehrere Schwachstellen ermöglichen Privilegieneskalation und die Ausführung von Code

Entryinfo

Created: 05/21/2026 16:41
Updated: 05/22/2026 12:06
Changes: 05/21/2026 16:41 (62), 05/21/2026 19:58 (1), 05/22/2026 12:06 (7)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.