KEV Entry

CVE-2009-1537

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2009-1537

2026-05-20 00:00 UTC

Timestamps

2026-05-20

2026-05-20

Scope

KEV entry: Microsoft DirectX NULL Byte Overwrite Vulnerability | Affected: Microsoft / DirectX | 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. | Due date: 2026-06-03 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://learn.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-028 ; https://nvd.nist.gov/vuln/detail/CVE-2009-1537

References
  • {'id': 'CVE-2009-1537', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2009-1537'}

cf92ed75-0bce-4ed0-b68d-401168ad5199

405284c2-e461-4670-8979-7fd2c9755a60

2026-05-20 18:00 UTC

2026-05-20 18:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [],
  "date_added": "2026-05-20",
  "due_date": "2026-06-03",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "DirectX",
  "vendorProject": "Microsoft",
  "vulnerabilityName": "Microsoft DirectX NULL Byte Overwrite Vulnerability"
}
 -
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