CVE-2025-52521 in Maximum Security
Summary
by MITRE • 07/10/2025
Trend Micro Security 17.8 (Consumer) is vulnerable to a link following local privilege escalation vulnerability that could allow a local attacker to unintentionally delete privileged Trend Micro files including its own.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 06/19/2026
The vulnerability in Trend Micro Security 17.8 consumer edition represents a critical local privilege escalation flaw that arises from improper handling of file operations during the link following process. This weakness allows a local attacker to manipulate the system's file access mechanisms and potentially delete privileged Trend Micro files, including the security application itself. The issue stems from insufficient validation of symbolic links and file paths during the execution of security operations, creating an attack surface where malicious actors can exploit the trust relationship between the security software and the operating system. The vulnerability is particularly concerning because it directly targets the security application's own files, potentially leading to complete system compromise or complete removal of the security protection layer.
The technical implementation of this flaw involves the application's failure to properly sanitize or validate symbolic links when processing file operations, which creates a path traversal condition that can be exploited by local users. When the Trend Micro security application processes file links or references, it does not adequately verify the integrity or authenticity of these symbolic links, allowing attackers to redirect file operations to privileged system locations. This vulnerability is classified under CWE-22 Path Traversal and CWE-787 Out-of-bounds Write, as it involves improper handling of file paths and potential manipulation of system files. The attack vector specifically aligns with ATT&CK technique T1068, which covers Local Privilege Escalation, and T1566, which involves Phishing with Malicious Link, as the exploitation can occur through malicious file interactions.
The operational impact of this vulnerability extends beyond simple file deletion, as it can lead to complete system compromise and removal of security protections. An attacker who successfully exploits this vulnerability can potentially gain elevated privileges, manipulate security configurations, or even disable the entire Trend Micro security stack, leaving the system completely exposed to further attacks. The local nature of the vulnerability means that attackers do not require network access or remote exploitation capabilities, making it particularly dangerous in environments where local access is possible. This flaw undermines the fundamental security model of endpoint protection software, as it allows attackers to compromise the very software designed to protect the system. The potential for complete system takeover increases when considering that the vulnerability enables the deletion of critical security files, effectively creating a sandbox escape condition.
Mitigation strategies for this vulnerability should focus on immediate patch management and system hardening measures. Organizations should prioritize updating to the latest Trend Micro Security versions that address this specific privilege escalation flaw. System administrators should implement additional monitoring for suspicious file operations and symbolic link creation, particularly in security application directories. The implementation of least privilege principles and mandatory access controls can help limit the impact of such vulnerabilities by restricting what local users can do within the security application's operational context. Additionally, regular security audits should verify that the security application's file permissions and access controls are properly configured to prevent unauthorized modifications. Network segmentation and endpoint detection and response solutions can provide additional layers of protection by monitoring for anomalous behavior patterns that may indicate exploitation attempts. The vulnerability also highlights the importance of secure coding practices in security software development, emphasizing the need for comprehensive input validation and proper file path handling to prevent similar issues in the future.