CVE-2009-1537
Microsoft DirectX NULL Byte Overwrite
- Published29 May 2009
- Added to CISA KEV20 May 2026
- Remediation due3 Jun 2026
Description
Unspecified vulnerability in the 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 Windows Server 2003 SP2 allows remote attackers to execute arbitrary code via a crafted QuickTime media file, as exploited in the wild in May 2009, aka "DirectX NULL Byte Overwrite Vulnerability."
CVSS 3.1 breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HAffected products
Remediation
No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.
- http://blogs.technet.com/msrc/archive/2009/05/28/microsoft-security-advisory-971778-vulnerability-in-microsoft-directshow-released.aspx
- http://blogs.technet.com/srd/archive/2009/05/28/new-vulnerability-in-quicktime-parsing.aspx
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-028
- http://secunia.com/advisories/35268
- http://www.microsoft.com/technet/security/advisory/971778.mspx
- http://www.vupen.com/english/advisories/2009/1445
References
- http://blogs.technet.com/msrc/archive/2009/05/28/microsoft-security-advisory-971778-vulnerability-in-microsoft-directshow-released.aspx
- http://blogs.technet.com/srd/archive/2009/05/28/new-vulnerability-in-quicktime-parsing.aspx
- http://isc.sans.org/diary.html?storyid=6481
- http://osvdb.org/54797
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-028
- http://secunia.com/advisories/35268
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6237
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-1537
- http://www.microsoft.com/technet/security/advisory/971778.mspx
- http://www.securityfocus.com/bid/35139
and 4 more references
Related CVEs
Recent high-severity vulnerabilities sharing a weakness type.
Frequently asked
Is CVE-2009-1537 being actively exploited?
Yes. CVE-2009-1537 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 20 May 2026.
How severe is CVE-2009-1537?
CVE-2009-1537 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 51.2% probability of exploitation.
Which products are affected by CVE-2009-1537?
Affected products include Microsoft Directx, Microsoft Windows 2000, Microsoft Windows 2003 Server, Microsoft Windows Server 2003, Microsoft Windows Xp.
How do I fix CVE-2009-1537?
Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2009-1537 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.