CVE-2025-30400

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 2025-05-13), 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: 2%CVSS: 7.8Exploit: cisa kev · ssvc activeExposed: 0

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

Use after free in Windows DWM allows an authorized attacker to elevate privileges 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
2%
EPSS %ILE
79%
KEV
⚠ Exploited

Published

May 13, 2025

Last Modified

October 27, 2025

Advisory Details (2)

Auto-updated Jun 4, 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-2025-30400
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-2025-30400

Vendor Advisories for CVE-2025-30400(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 104× in last 7d / 430× 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 1,631 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2025-30400?
CVE-2025-30400 is a critical vulnerability published on May 13, 2025. Use after free in Windows DWM allows an authorized attacker to elevate privileges locally.
When was CVE-2025-30400 disclosed?
CVE-2025-30400 was first published in the National Vulnerability Database on May 13, 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-2025-30400 actively exploited?
Yes. CISA added CVE-2025-30400 to the Known Exploited Vulnerabilities catalog on May 13, 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-2025-30400?
CVE-2025-30400 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-2025-30400?
CVE-2025-30400 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-2025-30400?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-30400, 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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