peter bassill · operator
$ cve CVE-2009-1537 JSON

CVE-2009-1537 KEV

8.8
HIGH · CVSS 3.1 · EPSS 51.2% (pctl 99)

Patch first

On CISA KEV — known exploited in the wild, due 2026-06-03.

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."

Scoring

CVSS8.8 (HIGH, v3.1)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS51.21% — more likely to be exploited than 99% of all CVEs
WeaknessCWE-158
On CISA KEVyes — remediate by 2026-06-03
Public exploitnone known
Published2009-05-29
Last modified2026-06-16

CISA KEV

NameMicrosoft DirectX NULL Byte Overwrite Vulnerability
Added2026-05-20
Due2026-06-03
Vendor / productMicrosoft / DirectX
Ransomware usenone reported

Affected (5)

VendorProduct
microsoftdirectx
microsoftwindows 2000
microsoftwindows 2003 server
microsoftwindows server 2003
microsoftwindows xp

References

→ the Explorer  ·  watch your stack  ·  NVD