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SECURITY BULLETIN: Trend Micro OfficeScan 11.0 and XG Multiple Vulnerabilities

    • Updated:
    • 30 Dec 2019
    • Product/Version:
    • OfficeScan 11.0
    • OfficeScan XG
    • Platform:
    • N/A N/A
    • Windows 10
    • Windows 10 32-bit
    • Windows 10 64-bit
    • Windows 2003 32-Bit
    • Windows 2003 64-Bit
    • Windows 2003 Datacenter 64-bit
    • Windows 2003 Enterprise
    • Windows 2003 Server R2
    • Windows 2003 Standard 64-bit
    • Windows 2008 32-Bit
    • Windows 2008 64-Bit
    • Windows 2008 Datacenter
    • Windows 2008 Datacenter 64-bit
    • Windows 2008 Enterprise
    • Windows 2008 Enterprise 64-bit
    • Windows 2008 Server R2 Enterprise
    • Windows 2008 Standard
    • Windows 2008 Standard 64-bit
    • Windows 2008 Web Server Edition
    • Windows 2008 Web Server Edition 64-bit
    • Windows 2012
    • Windows 2012 Datacenter R2
    • Windows 2012 Enterprise
    • Windows 2012 Enterprise R2
    • Windows 2012 Server Essential R2
    • Windows 2012 Server Essentials
    • Windows 2012 Server R2
    • Windows 2012 Standard
    • Windows 2012 Standard R2
    • Windows 2016
    • Windows 7 32-Bit
    • Windows 7 64-Bit
    • Windows 8 32-Bit
    • Windows 8 64-Bit
    • Windows 8.1 32-Bit
    • Windows 8.1 64-Bit
Release Date: June 6, 2018
CVE Identifier(s): CVE-2018-10358, 10359, 10505-10509
Platform(s): Windows
CVSS 3.0 Score(s): 1.9 - 6.1
Severity Rating(s): Low & Medium

Trend Micro has released new Critical Patches (CPs) for Trend Micro OfficeScan 11.0 SP1 and XG.  These CPs resolve multiple OfficeScan vulnerabilities related to privilege escalation, service bypass, information disclosure, and browser refresh.   


Affected Version(s)

ProductAffected Version(s)PlatformLanguage(s)
OfficeScanXG SP1WindowsEnglish
XG (GM Version)WindowsEnglish
11.0 SP1WindowsEnglish


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

ProductUpdated versionNotesPlatformAvailability
OfficeScanXG SP1 CP 5147- Readme
- Special Note*
WindowsAvailable Now
XG CP 1876 (Pre-SP1)- Readme
- Special Note*
WindowsAvailable Now
110.0 SP1 CP 6540- Readme
- Special Note*
WindowsAvailable Now

* Please note that these CPs also enable Windows 10 April 2018 Update (RS4) compatibility. Admistrators are strongly recommended to review KB1119990 for a special note on a known (but rare) issue, and KB1119685 for more information on general RS4 compatibility.

This is the minimum version(s) of the patch and/or build 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

This update resolves multiple vulnerabilities in Trend Micro OfficeScan:

  1. CVE-2018-10358, 10359, 10505:  OfficeScan tmwfp Driver Pool Corruption Privilege Escalation vulnerabilities
  2. CVE-2018-10506: OfficeScan tmwfp Driver Out-Of-Bounds Read Information Disclosure vulnerability
  3. CVE-2018-10507:  OfficeScan "Unauthorized Change Prevention" Bypass vulnerability (requires Admin permissions to exploit)
  4. CVE-2018-10508:  OfficeScan Privilege Escalation via URL vulnerability
  5. CVE-2018-10509:  OfficeScan Browser Refresh vulnerability

Due to the seriousness of these or any vulnerabilities, customers are highly encouraged to update to the latest build as soon as possible.

Mitigating Factors

Exploiting these types 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:

External Reference(s)


CVEResearcher Case
(if applicable)
CVE-2018-10358 ZDI-18-565
CVE-2018-10359 ZDI-18-564
CVE-2018-10505 ZDI-18-563
CVE-2018-10506 ZDI-18-566
CVE-2018-10507 LINK
CVE-2018-10508 N/A
CVE-2018-10509 N/A
Solution Id:
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