Executive Summary

This vulnerability is an origin validation flaw in the Apex One/SEP agent software. It allows a local attacker, who already has the ability to run low-privileged code on the affected system, to escalate their privileges. Essentially, the attacker can gain higher-level access than initially permitted by exploiting a weakness in the process protection mechanism of the software.

It is similar to another vulnerability identified as CVE-2026-34927 but affects a different part of the process protection.

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Impact Analysis

If exploited, this vulnerability can allow an attacker with limited access to escalate their privileges on the system. This means the attacker could gain higher-level permissions, potentially leading to full control over the affected system.

The impact includes the possibility of compromising confidentiality, integrity, and availability of the system, as indicated by the CVSS score which rates the impact on these aspects as high.

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Mitigation Strategies

To mitigate this vulnerability, ensure that you update your Apex One (on-premise) and Apex One as a Service installations, as well as Vision One - Standard Endpoint Protection (SEP), to the latest versions released by Trend Micro.

Since exploitation requires prior ability to execute low-privileged code, restricting such access and monitoring for suspicious local activity can also help reduce risk.

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