Vulnerability Note VU#271860

Microsoft Outlook fails to properly parse Office Saved Searches (.oss) files

Original Release date: 09 Jan 2007 | Last revised: 26 Jan 2007


A vulnerability exists in the way Microsoft Outlook handles Office Saved Searches (.oss). This vulnerability may allow a remote attacker to execute arbitrary code.


Office Saved Searches (.oss) contain views of e-mail items that satisfy previous search criteria.

Microsoft Outlook fails to properly parse Office Saved Searches (.oss) files. This vulnerability can be triggered when a user opens a specially crafted .oss file. Exploitation of this vulnerability may corrupt system memory, possibly resulting in the exploitation of arbitrary code.

More information and a list of affected versions is available in Microsoft Security Bulletin MS07-003.


A remote, unauthenticated attacker may be able to execute arbitrary code with the permissions of the user running Outlook.


Apply an Update

Microsoft has released updates in Microsoft Security Bulletin MS07-003 to address this issue.

Note: Applying this patch removes the ability to save and open Office Saved Searches. Please see the Microsoft document entitled "Cannot open or save Office Saved Searches files in Outlook" (KB925542) for more information.

Microsoft has documented known issues that occur after applying this update. See Microsoft Knowledgebase article 925938 for details.


Do not open or save Office Saved Searches files from untrusted sources or unexpected trusted sources.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Microsoft CorporationAffected-09 Jan 2007
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A



Microsoft reported this vulnerability in MS07-003. Microsoft credits Stuart Pearson for reporting this vulnerability.

This document was written by Katie Steiner.

Other Information

  • CVE IDs: CVE-2007-0034
  • Date Public: 09 Jan 2007
  • Date First Published: 09 Jan 2007
  • Date Last Updated: 26 Jan 2007
  • Severity Metric: 22.03
  • Document Revision: 21


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