CVE-2009-1537

Microsoft DirectX NULL Byte Overwrite Vulnerability

Microsoft — DirectX

Added to KEV catalog: 20 May 2026
Federal remediation due date: 3 June 2026

CISA Description

Microsoft DirectX contains a NULL byte overwrite vulnerability in the QuickTime Movie Parser Filter in quartz.dll in DirectShow which could allow remote attackers to execute arbitrary code via a crafted QuickTime media file.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

https://learn.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-028 ; https://nvd.nist.gov/vuln/detail/CVE-2009-1537

View on NVD View on MITRE CVE View full CISA catalog

More Microsoft Vulnerabilities

CVE-2026-33824

Microsoft Internet Key Exchange (IKE) Service Extensions Double Free Vulnerability

CVE-2026-55040

Microsoft SharePoint Weak Authentication Vulnerability

CVE-2026-68820

Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability

CVE-2026-50522

Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

CVE-2026-58644

Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

Confirm Your Exposure

Is this vulnerability present in your environment?

CRS delivers independent VAPT assessments that identify exactly which known-exploited vulnerabilities exist in your network, applications, and infrastructure.

Explore VAPT Services