CVE-2025-24985

HIGHNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-03-11), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 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
7.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 4%CVSS: 7.8Exploit: NoneExposed: 0

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

Integer overflow or wraparound in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.

CVSS v3
7.8
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
88.6%
KEV
⚠ Exploited

Published

March 11, 2025

Last Modified

October 27, 2025

Advisory Details (4)

Auto-updated Jun 3, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: microsoft, cisa.
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-2025-24985
generic

CVE-2025-24985 - Integer Overflow Vulnerability in Microsoft Windows Fast FAT Driver - Mitigation Script - vsociety

https://www.vicarius.io/vsociety/posts/cve-2025-24985-integer-overflow-vulnerability-in-microsoft-windows-fast-fat-driver-mitigation-script
generic

CVE-2025-24985 - Integer Overflow Vulnerability in Microsoft Windows Fast FAT Driver - Detection Script - vsociety

https://www.vicarius.io/vsociety/posts/cve-2025-24985-integer-overflow-vulnerability-in-microsoft-windows-fast-fat-driver-detection-script
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-2025-24985

Vendor Advisories for CVE-2025-24985(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 83× in last 7d / 403× 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 744 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCairbus-cert/cve-2025-24985
    First seen Apr 2, 2025

    Detection of malicious VHD files for CVE-2025-24985

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2025-24985?
CVE-2025-24985 is a high vulnerability published on March 11, 2025. Integer overflow or wraparound in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.
When was CVE-2025-24985 disclosed?
CVE-2025-24985 was first published in the National Vulnerability Database on March 11, 2025, with the most recent update on October 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-24985 actively exploited?
Yes. CISA added CVE-2025-24985 to the Known Exploited Vulnerabilities catalog on March 11, 2025, affecting Microsoft Windows. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2025-24985?
CVE-2025-24985 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2025-24985?
CVE-2025-24985 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-2025-24985?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-24985, 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

Explore the affected products and dependency analysis for CVE-2025-24985

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