Rule Category

FILE-OFFICE -- Snort detected traffic targeting vulnerabilities in files belonging to the Microsoft Office suite of software (Excel, PowerPoint, Word, Visio, Access, Outlook, etc.).

Alert Message

FILE-OFFICE Microsoft Office Excel Viewer msostyle.dll dll-load exploit attempt

Rule Explanation

Untrusted search path vulnerability in Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel Viewer 2007 SP3, and Office Compatibility Pack SP3 allows local users to gain privileges via a Trojan horse DLL in the current working directory, aka "Microsoft Excel DLL Remote Code Execution Vulnerability." Impact: CVSS base score 6.9 CVSS impact score 10.0 CVSS exploitability score 3.4 confidentialityImpact COMPLETE integrityImpact COMPLETE availabilityImpact COMPLETE Details: Ease of Attack:

What To Look For

No information provided

Known Usage

No public information

False Positives

No known false positives


Talos research team. This document was generated from data supplied by the national vulnerability database, a product of the national institute of standards and technology. For more information see [nvd].

Rule Groups

No rule groups


Additional Links

Rule Vulnerability

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.
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