ZDI-26-142: Trend Micro Apex One Security Agent Cache Mechanism Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of Trend Micro Apex One Security Agent. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the cache mechanism. The issue results from the lack of proper cache key checking during signature verification. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.
Other sources
This vulnerability allows local attackers to escalate privileges on affected installations of Trend Micro Apex One Security Agent. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2025-71216.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-26-142?
The severity of ZDI-26-142 is classified as critical due to its potential for local privilege escalation.
How do I fix ZDI-26-142?
To fix ZDI-26-142, update Trend Micro Apex One Security Agent to the latest version that addresses this vulnerability.
Who is affected by ZDI-26-142?
Users of the Trend Micro Apex One Security Agent are affected by ZDI-26-142.
What type of vulnerability is ZDI-26-142?
ZDI-26-142 is a local privilege escalation vulnerability that arises from a flaw in the cache mechanism.
Can ZDI-26-142 be exploited remotely?
No, ZDI-26-142 requires local access to exploit the vulnerability.