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CVE-2025-71216 is a local privilege escalation vulnerability in the Trend Micro Apex One Security Agent for macOS. The flaw is described as a time-of-check time-of-use (TOCTOU) issue in the agent cache mechanism. Supporting context indicates the vulnerable condition stems from improper cache key checking during signature verification, creating a race condition that can be abused after validation but before use. An attacker who already has the ability to execute low-privileged code on the target macOS system can exploit this weakness to elevate privileges. The issue was tracked as ZDI-26-142 / ZDI-CAN-26605 and was noted by Trend Micro as informational because it had already been addressed through ActiveUpdate/SaaS updates in mid to late 2025.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A TOCTOU vulnerability in the cache mechanism of the Trend Micro Apex One agent for Mac that may allow local privilege escalation.
TOCTOU local privilege escalation issue affecting Trend Micro Apex One macOS agent; referenced as informational and stated to have been previously fixed via earlier updates.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.