What’s Vulnerable › Vulnerabilities

CVE-2009-2525

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 23.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2009-10-14 · updated 2026-06-16
• Weakness: CWE-94

Description

Microsoft Windows Media Runtime, as used in DirectShow WMA Voice Codec, Windows Media Audio Voice Decoder, and Audio Compression Manager (ACM), does not properly initialize unspecified functions within compressed audio files, which allows remote attackers to execute arbitrary code via (1) a crafted media file or (2) crafted streaming content, aka "Windows Media Runtime Heap Corruption Vulnerability."

Affected products

• Microsoft Windows 2000: all versions
• Microsoft Windows Media Format Runtime: 9.0, 9.5, 11
• Microsoft Corporation Windows Media Player: 9
• Microsoft Windows Server 2003: all versions
• Microsoft Windows Server 2008: all versions
• Microsoft Windows Vista: all versions
• Microsoft Windows XP Service Pack 3: all versions

References

• http://www.us-cert.gov/cas/techalerts/TA09-286A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-051
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6484
• http://www.us-cert.gov/cas/techalerts/TA09-286A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-051
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6484

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