Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 21/05/2026. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| apex one | < 14.0.0.17079< 14.0.20731 | 14.0.0.1707914.0.20731 |
A directory traversal vulnerability in the Apex One (on-premise) server could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations. This vulnerability is only exploitable on the on-premise version of Apex One and a potential attacker must have access to the Apex One Server and already obtained administrative credentials to the server via some other method to exploit this vulnerability.
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