CVE-2026-45208: High severity Trend Micro Apex One vulnerability

Published May 21, 2026
·
Updated

A time-of-check time-of-use 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.

Affected Software

4 affected components
Trend Micro Apex One
Symantec Endpoint Protection (SEP) agent
trendmicro Apex One Windows<14.0.0.17079
trendmicro Apex One Windows<14.0.20731

Event History

May 21, 2026
CVE Published
via MITRE·01:04 PM
Data Sourced
via MITRE·01:04 PM
DescriptionSeverity
Data Sourced
via NVD·02:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-45208?

CVE-2026-45208 has a severity rating of 7.8, classified as high.

2

How do I fix CVE-2026-45208?

To mitigate CVE-2026-45208, ensure that you apply the latest security updates provided by Trend Micro for Apex One and Symantec for the SEP agent.

3

What systems are affected by CVE-2026-45208?

CVE-2026-45208 affects the Trend Micro Apex One and Symantec Endpoint Protection agent installations.

4

What type of vulnerability is CVE-2026-45208?

CVE-2026-45208 is a time-of-check time-of-use vulnerability that can lead to privilege escalation.

5

What is required for an attacker to exploit CVE-2026-45208?

An attacker must first gain the ability to execute low-privileged code on the target system to exploit CVE-2026-45208.

Contact

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