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Vulnerability record · CVE-2009-2525 · published 14 October 2009

CVE-2009-2525: Microsoft windows 2000 code injection vulnerability

Microsoft · Windows 2000

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."

9.3 CVSS 2.0 High EPSS 23% · top 2.3% CWE-94 · Code injection
9.3CVSS 2.0 base score
23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

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."

AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.us-cert.gov/cas/techalerts/TA09-286A.html US Government Resource
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 US Government Resource
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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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-2525), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.