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Vulnerability protection

Windows Media Format Runtime vulnerability could allow remote code execution

Report ID: MS201307006
Date Published: 11 July 2013

Criticality: Critical
Compromise Type: remote-code-execution
Compromise From: remote

Affected Product/Component:

Windows Media Format Runtime 9
Windows Media Format Runtime 9.5
Windows Media Format Runtime 9.5 x64
Windows Media Format Runtime 11
Windows Media Format Runtime 12
wmv9vcm.dll (codec)


A vulnerability involving Windows Media Format Runtime could allow an attacker to execute code and take control of an affected system.

Detailed Description

Microsoft has issued a security update to address a remote code execution vulnerability in Windows Media Format Runtime. It was caused by failure to parse specially crafted media files, and could be exploited into allowing an attacker to execute code and take control of a system.

This issue has been resolved in the update by modifying the way that Windows Media Player opens media files. Users are recommended to install the update to their system as a protection measure against possible exploit attempts.

CVE Reference



Install the latest security patch for applicable system, available for download from (https://technet.microsoft.com/en-us/security/bulletin/ms13-057)

Security Advisories

For a list of known vulnerabilities affecting F-Secure products and the released fixes, please refer to the Security Advisories page.