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ZDI-26-653: TrendAI Apex One Security Agent Cache Mechanism Time-Of-Check Time-Of-Use Local Privilege Escalation Vulnerability

ZDI-26-653: TOCTOU race in Trend Micro Apex One cache mechanism, CVE-2025-71415, enables local privilege escalation, rated CVSS 7.8.

The Zero Day Initiative published advisory ZDI-26-653 for the Trend Micro Apex One Security Agent. A time-of-check time-of-use (TOCTOU) flaw in the cache mechanism, tracked as CVE-2025-71415, allows local attackers to escalate privileges after gaining low-privileged code execution. ZDI assigned a CVSS 7.8 rating. A vendor patch is available for affected installations.

$20 per zero-day is already the WordPress plugin reality

TrendAI and CHT Security used an AI pipeline to find over 300 verified WordPress plugin zero-days at roughly $20 per vulnerability.

A pipeline built in three days by TrendAI and CHT Security, presented at Ekoparty Miami, paired AI-driven static analysis with automated Docker provisioning and Chrome DevTools MCP dynamic verification to surface more than 300 critical zero-days in WordPress plugins within 72 hours. The run consumed about 222 million tokens across 95 tasks, averaging roughly $20 per verified vulnerability, with findings including pre-auth RCE, SQL injection, privilege escalation, SSRF, and an AI-assembled downgrade attack chain. Dynamic verification eliminated over 80% of false positives, but manual review at 30-60 minutes per finding remains the bottleneck, straining ZDI and NIST triage backlogs.

Help Net Security · 23d agoResearch1