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SECURITY BULLETIN: Trend Micro Apex One and OfficeScan XG Credential Key Exposure Vulnerability

    • Updated:
    • 20 Dec 2019
    • Product/Version:
    • Apex One All
    • OfficeScan XG
    • Platform:
Release Date: December 19, 2019
CVE Identifier(s): CVE-2019-19691
Platform(s): Windows
CVSS 3.0 Score(s): 2.0
Severity Rating(s): Low

Trend Micro has released Critical Patches (CPs)for Trend Micro Apex One and OfficeScan XG. These CPs resolve a masked credential key exposure vulnerability.


Affected Version(s)

ProductAffected Version(s)PlatformLanguage(s)
Apex One2019WindowsEnglish


Trend Micro has released the following solutions to address the issue:

ProductUpdated version*NotesPlatformAvailability
Apex OneCP B2049ReadmeWindowsNow
OfficeScanXG SP1 CP B5427r1ReadmeWindowsNow
XG (non-SP1) CP B1962ReadmeWindowsNow

*These are the minimum versions of the patches and/or builds required to address the issue. Trend Micro highly encourages customers to obtain the latest version of the product if there is a newer one available than the one listed in this bulletin.

Customers are encouraged to visit Trend Micro’s Download Center to obtain prerequisite software (such as Service Packs) before applying any of the solutions above.

Vulnerability Details

These updates resolves a vulnerability in Trend Micro Apex One and OfficeScan XG that could allow an attacker to expose a masked credential key by manipulating page elements using development tools. Please note that the attacker must already have admin/root privileges on the product console to exploit this vulnerability.

Mitigating Factors

Exploiting these type of vulnerabilities generally require that an attacker has access (physical or remote) to a vulnerable machine. In addition to timely application of patches and updated solutions, customers are also advised to review remote access to critical systems and ensure policies and perimeter security is up-to-date.

However, even though an exploit may require several specific conditions to be met, Trend Micro strongly encourages customers to update to the latest builds as soon as possible.


Trend Micro would like to thank the following individuals for responsibly disclosing these issues and working with Trend Micro to help protect our customers:

  • Muhammad Osama
Upgrade; Update
Solution Id:
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