Is CVE-2009-0555 being actively exploited?

CVE-2009-0555 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-0555?

CVE-2009-0555 has a CVSS 2.0 base score of 9.3 (HIGH).

CVE-2009-0555

HIGH · CVSS 9.3EPSS 27.1%EU EUVD

Microsoft Windows Media Runtime, as used in DirectShow WMA Voice Codec, Windows Media Audio Voice Decoder, and Audio Compression Manager (ACM), does not properly process Advanced Systems Format (ASF) files, which allows remote attackers to execute arbitrary code via a crafted audio file that uses the Windows Media Speech codec, aka "Windows Media Runtime Voice Sample Rate Vulnerability."

Key facts

CVSS score: 9.3 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-94
EPSS score: 27.1% (98th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-0559)
Published: October 14, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-0559 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / windows 2000
microsoft / windows media format runtime
microsoft / windows media format runtime
microsoft / windows media format runtime
microsoft / windows media player
microsoft / windows server 2003
microsoft / windows server 2003
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows vista
microsoft / windows vista
microsoft / windows vista
microsoft / windows vista
microsoft / windows vista
microsoft / windows vista
microsoft / windows xp
microsoft / windows xp
microsoft / windows xp

References

http://www.us-cert.gov/cas/techalerts/TA09-286A.html(Third Party Advisory, US Government Resource)
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-051(Patch, Vendor Advisory)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6407(Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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