CVE-2025-24985

CRITICALNVD 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
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 4%CVSS: 7.8Exploit: cisa kev · ssvc active · public exploitExposed: 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 PROB
4%
EPSS %ILE
90%
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 104× in last 7d / 428× 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 1,544 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2025-24985?
CVE-2025-24985 is a critical 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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