CVE-2009-1537

HIGH

8.8

CVSS Score

Published: May 29, 2009 at 06:00 PM UTC

Updated: June 16, 2026 at 11:07 PM UTC

5 products affected across 1 vendorWindows XpWindows Server 2003Windows 2000

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Severity

HIGH8.8

Exploitation

CISA KEV

Exploit prediction

EPSS 51%

SSVC

Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score51.4%

EPSS (Exploit Prediction Scoring System) estimates a 51.4% chance this CVE is exploited in the wild within the next 30 days — higher than 99% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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.

Ransomware Use

Unknown

Added to KEV

May 20, 2026

Remediation Due

Jun 3, 2026

146 days overdue

Notes

https://learn.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-028

https://nvd.nist.gov/vuln/detail/CVE-2009-1537

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."