CVE-2009-1538

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 performs updates to pointers without properly validating unspecified data values, which allows remote attackers to execute arbitrary code via a crafted QuickTime media file, aka "DirectX Pointer Validation Vulnerability."

Published: 2009-07-15 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-1538 is rated High Risk (66.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 61.12%, 98th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-1538

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-22 69.97% 61.12% -8.85%
2 2026-01-31 69.18% 69.97% +0.79%
3 2025-12-28 — 69.18% —

Full EPSS history (36 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1538

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2009-1538

Affected software / configurations for CVE-2009-1538

Vendor Product Version Raw CPE
microsoft directx 7.0 cpe:2.3:a:microsoft:directx:7.0:*:*:*:*:*:*:*
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:-:sp4:*:*:*:*:*:*
microsoft directx 8.1 cpe:2.3:a:microsoft:directx:8.1:*:*:*:*:*:*:*
microsoft directx 9.0 cpe:2.3:a:microsoft:directx:9.0:*:*:*:*:*:*:*
microsoft windows_server_2003 — cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*

References for CVE-2009-1538

cvelogic Threat Intelligence