CVE-2025-24991

CRITICALNVD 5.59.0▲
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 5.5 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: 2%CVSS: 5.5Exploit: cisa kev · ssvc activeExposed: 0

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

Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.

CVSS v3
5.5
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
2%
EPSS %ILE
79%
KEV
⚠ Exploited

Published

March 11, 2025

Last Modified

October 27, 2025

Advisory Details (2)

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-2025-24991
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-2025-24991

Vendor Advisories for CVE-2025-24991(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 95× in last 7d / 371× 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 899 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2025-24991?
CVE-2025-24991 is a critical vulnerability published on March 11, 2025. Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.
When was CVE-2025-24991 disclosed?
CVE-2025-24991 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-2025-24991 actively exploited?
Yes. CISA added CVE-2025-24991 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-2025-24991?
CVE-2025-24991 has a CVSS v3 base score of 5.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2025-24991?
CVE-2025-24991 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-2025-24991?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-24991, 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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