CVE-2009-0555
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 27.1%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
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 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."
- CVSS 2.0
- 9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
- EPSS
- 27.09% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- microsoft/windows 2000 · microsoft/windows media format runtime · microsoft/windows media player · microsoft/windows xp · microsoft/windows server 2003 · microsoft/windows server 2008 · microsoft/windows vista
- Source
- secure@microsoft.com
EPSS 27.1% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.us-cert.gov/cas/techalerts/TA09-286A.htmlThird Party Advisory, US Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-051Patch, Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6407Third Party Advisory
- http://www.us-cert.gov/cas/techalerts/TA09-286A.htmlThird Party Advisory, US Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-051Patch, Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6407Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.