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Vulnerability record · CVE-2009-0084 · published 15 April 2009

CVE-2009-0084: Microsoft directx code injection vulnerability

Microsoft · Directx

Use-after-free vulnerability in DirectShow in Microsoft DirectX 8.1 and 9.0 allows remote attackers to execute arbitrary code via an MJPEG file or video stream with a malformed Huffman table, which triggers an exception that frees heap memory that is later accessed, aka "MJPEG Decompression Vulnerability."

9.3 CVSS 2.0 High EPSS 32% · top 1.8% CWE-94 · Code injection
9.3CVSS 2.0 base score
32%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
20References
16 Jun 2026Last modified by NVD

Description

Use-after-free vulnerability in DirectShow in Microsoft DirectX 8.1 and 9.0 allows remote attackers to execute arbitrary code via an MJPEG file or video stream with a malformed Huffman table, which triggers an exception that frees heap memory that is later accessed, aka "MJPEG Decompression Vulnerability."

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

Affected products

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

References

LinkTags
http://osvdb.org/53632
http://secunia.com/advisories/34665
http://support.avaya.com/elmodocs2/security/ASA-2009-132.htm
http://www.piotrbania.com/all/adv/ms-directx-mjpeg-adv.txt
http://www.securityfocus.com/bid/34460
http://www.securitytracker.com/id?1022040
http://www.us-cert.gov/cas/techalerts/TA09-104A.html US Government Resource
http://www.vupen.com/english/advisories/2009/1025
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-011
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5618
http://osvdb.org/53632
http://secunia.com/advisories/34665
http://support.avaya.com/elmodocs2/security/ASA-2009-132.htm
http://www.piotrbania.com/all/adv/ms-directx-mjpeg-adv.txt
http://www.securityfocus.com/bid/34460
http://www.securitytracker.com/id?1022040
http://www.us-cert.gov/cas/techalerts/TA09-104A.html US Government Resource
http://www.vupen.com/english/advisories/2009/1025
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-011
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5618

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Related vulnerabilities

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

8.8CVE-2009-1537Microsoft DirectShow QuickTime Parser NULL Byte Overwrite RCEThe QuickTime Movie Parser Filter in quartz.dll (DirectShow, DirectX 7.0 through 9.0c) contains an unspecified NULL byte overwrite flaw. A crafted Qu…KEVEPSS 51%analysed9.3CVE-2012-1537Microsoft directx memory buffer overflow vulnerabilityHeap-based buffer overflow in DirectPlay in DirectX 9.0 through 11.1 in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2,…EPSS 23%9.3CVE-2010-1879Microsoft directx code injection vulnerabilityUnspecified vulnerability in Quartz.dll for DirectShow; Windows Media Format Runtime 9, 9.5, and 11; Media Encoder 9; and the Asycfilt.dll COM compon…EPSS 20%9.3CVE-2010-1880Microsoft directx code injection vulnerabilityUnspecified vulnerability in Quartz.dll for DirectShow on Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista SP1, and Server 2008 all…EPSS 21%9.3CVE-2009-1538Microsoft directx improper input validation vulnerabilityThe QuickTime Movie Parser Filter in quartz.dll in DirectShow in Microsoft DirectX 7.0 through 9.0c on Windows 2000 SP4, Windows XP SP2 and SP3, and …EPSS 27%9.3CVE-2009-1539Microsoft directx code injection vulnerabilityThe QuickTime Movie Parser Filter in quartz.dll in DirectShow in Microsoft DirectX 7.0 through 9.0c on Windows 2000 SP4, Windows XP SP2 and SP3, and …EPSS 26%9.3CVE-2008-0011Microsoft directx memory buffer overflow vulnerabilityMicrosoft DirectX 8.1 through 9.0c, and DirectX on Microsoft XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008, does not p…EPSS 32%9.3CVE-2008-1444Microsoft directx memory buffer overflow vulnerabilityStack-based buffer overflow in Microsoft DirectX 7.0 and 8.1 on Windows 2000 SP4 allows remote attackers to execute arbitrary code via a Synchronized…EPSS 39%

Source: NIST National Vulnerability Database (record CVE-2009-0084), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.