CVE-2009-1537

HIGHNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-05-20), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
8.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 51%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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."

CVSS v3
8.8
EG Score
9.0(high)
EPSS
98.8%
KEV
⚠ Exploited

Published

May 29, 2009

Last Modified

May 21, 2026

Advisory Details (5)

Auto-updated May 21, 2026
No patch confirmed yet.
generic

VUPEN Security - Vulnerability Research and Intelligence

http://www.vupen.com/english/advisories/2009/1445
generic
http://www.securitytracker.com/id?1022299
generic
http://www.securityfocus.com/bid/35139
generic

About Secunia Research | Flexera

http://secunia.com/advisories/35268
generic

SANS.edu Internet Storm Center - SANS Internet Storm Center

http://isc.sans.org/diary.html?storyid=6481

Vendor Advisories for CVE-2009-1537(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 54× in last 7d / 219× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 412 total refreshes for this CVE.

  1. 2026-07-22 22:28 UTCGHSA enrichment
  2. 2026-07-22 21:42 UTCEG score recompute
  3. 2026-07-22 19:40 UTCCISA KEV update
  4. 2026-07-22 18:18 UTCGHSA enrichment
  5. 2026-07-22 14:09 UTCEG score recompute
  6. 2026-07-22 14:09 UTCGHSA enrichment
  7. 2026-07-22 14:03 UTCEPSS rescore
  8. 2026-07-22 09:59 UTCGHSA enrichment
  9. 2026-07-22 05:50 UTCGHSA enrichment
  10. 2026-07-22 01:40 UTCGHSA enrichment
  11. 2026-07-21 18:23 UTCEG score recompute
  12. 2026-07-21 18:22 UTCGHSA enrichment
  13. 2026-07-21 15:20 UTCEPSS rescore
  14. 2026-07-21 14:37 UTCCISA KEV update
  15. 2026-07-21 14:12 UTCGHSA enrichment
  16. 2026-07-21 10:03 UTCGHSA enrichment
  17. 2026-07-21 05:52 UTCGHSA enrichment
  18. 2026-07-21 01:35 UTCGHSA enrichment
  19. 2026-07-20 21:25 UTCGHSA enrichment
  20. 2026-07-20 17:15 UTCEG score recompute
  21. 2026-07-20 17:15 UTCGHSA enrichment
  22. 2026-07-20 17:03 UTCEPSS rescore
  23. 2026-07-20 17:03 UTCEPSS rescore
  24. 2026-07-20 13:05 UTCGHSA enrichment
  25. 2026-07-20 08:55 UTCGHSA enrichment
Show 75 more
  1. 2026-07-20 04:45 UTCGHSA enrichment
  2. 2026-07-20 00:36 UTCGHSA enrichment
  3. 2026-07-19 20:26 UTCGHSA enrichment
  4. 2026-07-19 16:17 UTCGHSA enrichment
  5. 2026-07-19 12:01 UTCGHSA enrichment
  6. 2026-07-19 07:53 UTCGHSA enrichment
  7. 2026-07-19 03:44 UTCEG score recompute
  8. 2026-07-19 03:44 UTCGHSA enrichment
  9. 2026-07-18 23:35 UTCGHSA enrichment
  10. 2026-07-18 19:26 UTCGHSA enrichment
  11. 2026-07-18 15:17 UTCGHSA enrichment
  12. 2026-07-18 11:08 UTCGHSA enrichment
  13. 2026-07-18 06:59 UTCGHSA enrichment
  14. 2026-07-18 02:50 UTCGHSA enrichment
  15. 2026-07-17 22:41 UTCGHSA enrichment
  16. 2026-07-17 18:32 UTCGHSA enrichment
  17. 2026-07-17 14:23 UTCGHSA enrichment
  18. 2026-07-17 10:14 UTCEG score recompute
  19. 2026-07-17 10:14 UTCGHSA enrichment
  20. 2026-07-17 06:05 UTCGHSA enrichment
  21. 2026-07-17 01:56 UTCGHSA enrichment
  22. 2026-07-16 21:46 UTCGHSA enrichment
  23. 2026-07-16 17:37 UTCGHSA enrichment
  24. 2026-07-16 17:04 UTCCISA KEV update
  25. 2026-07-16 16:58 UTCEPSS rescore
  26. 2026-07-16 13:28 UTCGHSA enrichment
  27. 2026-07-16 09:19 UTCGHSA enrichment
  28. 2026-07-16 05:10 UTCGHSA enrichment
  29. 2026-07-16 01:01 UTCGHSA enrichment
  30. 2026-07-15 20:51 UTCGHSA enrichment
  31. 2026-07-15 16:54 UTCEPSS rescore
  32. 2026-07-15 16:54 UTCEPSS rescore
  33. 2026-07-15 16:49 UTCCISA KEV update
  34. 2026-07-15 16:39 UTCGHSA enrichment
  35. 2026-07-15 15:04 UTCCISA KEV update
  36. 2026-07-15 12:30 UTCGHSA enrichment
  37. 2026-07-15 08:20 UTCGHSA enrichment
  38. 2026-07-15 04:11 UTCGHSA enrichment
  39. 2026-07-15 01:55 UTCEPSS rescore
  40. 2026-07-15 00:01 UTCGHSA enrichment
  41. 2026-07-14 19:52 UTCGHSA enrichment
  42. 2026-07-14 18:05 UTCCISA KEV update
  43. 2026-07-14 15:43 UTCGHSA enrichment
  44. 2026-07-14 11:31 UTCGHSA enrichment
  45. 2026-07-14 07:20 UTCGHSA enrichment
  46. 2026-07-14 03:12 UTCGHSA enrichment
  47. 2026-07-13 23:03 UTCGHSA enrichment
  48. 2026-07-13 22:25 UTCEPSS rescore
  49. 2026-07-13 18:54 UTCGHSA enrichment
  50. 2026-07-13 17:07 UTCCISA KEV update
  51. 2026-07-13 14:45 UTCGHSA enrichment
  52. 2026-07-13 10:35 UTCGHSA enrichment
  53. 2026-07-13 06:23 UTCGHSA enrichment
  54. 2026-07-13 06:07 UTCEPSS rescore
  55. 2026-07-13 02:11 UTCGHSA enrichment
  56. 2026-07-12 22:01 UTCGHSA enrichment
  57. 2026-07-12 17:52 UTCGHSA enrichment
  58. 2026-07-12 13:41 UTCGHSA enrichment
  59. 2026-07-12 09:32 UTCGHSA enrichment
  60. 2026-07-12 05:23 UTCGHSA enrichment
  61. 2026-07-12 01:14 UTCGHSA enrichment
  62. 2026-07-11 21:05 UTCGHSA enrichment
  63. 2026-07-11 16:56 UTCGHSA enrichment
  64. 2026-07-11 12:47 UTCGHSA enrichment
  65. 2026-07-11 08:38 UTCGHSA enrichment
  66. 2026-07-11 08:22 UTCEPSS rescore
  67. 2026-07-11 08:22 UTCEPSS rescore
  68. 2026-07-11 04:29 UTCGHSA enrichment
  69. 2026-07-11 00:19 UTCGHSA enrichment
  70. 2026-07-10 20:10 UTCGHSA enrichment
  71. 2026-07-10 17:52 UTCCISA KEV update
  72. 2026-07-10 16:01 UTCGHSA enrichment
  73. 2026-07-10 11:52 UTCGHSA enrichment
  74. 2026-07-10 07:43 UTCGHSA enrichment
  75. 2026-07-10 03:33 UTCGHSA enrichment

Frequently asked(6)

What is CVE-2009-1537?
CVE-2009-1537 is a high vulnerability published on May 29, 2009. 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…
When was CVE-2009-1537 disclosed?
CVE-2009-1537 was first published in the National Vulnerability Database on May 29, 2009, with the most recent update on May 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-1537 actively exploited?
Yes. CISA added CVE-2009-1537 to the Known Exploited Vulnerabilities catalog on May 20, 2026, affecting Microsoft DirectX. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2009-1537?
CVE-2009-1537 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2009-1537?
CVE-2009-1537 affects Microsoft DirectX. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2009-1537?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-1537, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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