CVE-2024-38217

CRITICALNVD 5.49.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2024-09-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 5.4 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 10%CVSS: 5.4Exploit: cisa kev · ssvc active · epss top5pctExposed: 0

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

Windows Mark of the Web Security Feature Bypass Vulnerability

CVSS v3
5.4
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
10%
EPSS %ILE
95%
KEV
⚠ Exploited

Published

September 10, 2024

Last Modified

August 10, 2026

Advisory Details (3)

Auto-updated Jun 13, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa, microsoft.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-38217
generic🔴 Active Exploitation

Dismantling Smart App Control — Elastic Security Labs

https://www.elastic.co/security-labs/dismantling-smart-app-control
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38217

Vendor Advisories for CVE-2024-38217(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 99× in last 7d / 413× 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 1,487 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2024-38217?
CVE-2024-38217 is a critical vulnerability published on September 10, 2024. Windows Mark of the Web Security Feature Bypass Vulnerability
When was CVE-2024-38217 disclosed?
CVE-2024-38217 was first published in the National Vulnerability Database on September 10, 2024, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-38217 actively exploited?
Yes. CISA added CVE-2024-38217 to the Known Exploited Vulnerabilities catalog on September 10, 2024, affecting Microsoft Windows. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2024-38217?
CVE-2024-38217 has a CVSS v3 base score of 5.4 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2024-38217?
CVE-2024-38217 affects Microsoft Windows. 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-2024-38217?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-38217, 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.

Dependency Blast Radius

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