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
76%
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 99× 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 957 total refreshes for this CVE.

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

Related CVEs(same vendor + 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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