Vulnerability record

CVE-2020-8599

Trend Micro Apex One and OfficeScan Authentication Bypass Vulnerability

Severity: CriticalExploitation: Exploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Apex One and OfficeScan, fix it now.

CISA required action: Apply updates per vendor instructions.

US federal civilian agencies must remediate by May 3, 2022.

Patch status

Official fix available since

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

Description

Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that could allow a remote attacker to write arbitrary data to an arbitrary path on affected installations and bypass ROOT login. Authentication is not required to exploit this vulnerability.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
ProductVendorAffected versionsSource
Apex OneTrend Micro2019NVD
Apex One and OfficeScanTrend Micro—KEV
OfficeScanTrend MicroxgNVD

Sources: NVD = NIST National Vulnerability Database; KEV = CISA Known Exploited Vulnerabilities catalog.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2020-8599 scored CVSS 9.8: Trend Micro Apex One and OfficeScan, Trend Micro Apex One and OfficeScan Authentication Bypass Vulnerability

    CISA lists this as exploited in the wild. Unpatched Apex One and OfficeScan systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdateKEV

    Patch released for CVE-2020-8599: Trend Micro Apex One and OfficeScan, Trend Micro Apex One and OfficeScan Authentication Bypass Vulnerability

    An official fix is now available for Trend Micro Apex One and OfficeScan. This vulnerability is being exploited, so apply it promptly.

    Basis: NVD patch reference

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References