CVE-2020-8599Actively exploitedAdded to KEV 2021-11-03

Trend Micro Apex One and OfficeScan Authentication Bypass Vulnerability

Trend Micro, Apex One and OfficeScan

Description

Trend Micro Apex One and OfficeScan server contain a vulnerable EXE file that could allow a remote attacker to write data to a path on affected installations and bypass root login.

CVSS severity for this advisory hasn't been enriched from NVD yet, check back shortly.

EPSS, exploit probability

High

11.9%

estimated chance of real-world exploitation in the next 30 days, higher than 96.1% of every CVE FIRST.org scores

Refreshed 10/28/2026, via FIRST.org's EPSS model, not CVSS, this measures likelihood of exploitation, not how severe it would be.

Required action

Apply updates per vendor instructions.

CISA-recommended due date: 2022-05-03

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