CVEvulnerability

CVE-2009-1537

8.8 HIGH Known exploited Published 2009-05-29 Modified 2026-06-16 Official page ↗

CISA Known Exploited Vulnerability

Microsoft DirectX NULL Byte Overwrite Vulnerability — Microsoft DirectX

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.

Added to KEV: 2026-05-20
Remediation due: 2026-06-03
Ransomware use: Unknown
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

Status: Analyzed
Published: 2009-05-29
Last modified: 2026-06-16
Assigner: [email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected]): 9.3 HIGH — AV:N/AC:M/Au:N/C:C/I:C/A:C
Weaknesses: CWE-158

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."

Affected configurations

• microsoft directx 7.0 • microsoft directx 7.0a • microsoft directx 7.1 • microsoft directx 8.1 • microsoft directx 8.1b • microsoft directx 9.0 • microsoft directx 9.0a • microsoft directx 9.0b • microsoft directx 9.0c • microsoft windows 2000 • microsoft windows 2003 server • microsoft windows server 2003 • microsoft windows xp

Weakness · CWE (1)

CWE-158 Improper Neutralization of Null Byte or NUL Character weakness

References