CVE-2025-54509

MEDIUMPre-NVD 4.04.0—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 97% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
4.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.0Exploit: NoneExposed: 0

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

Improper access control for register interface in the input-output memory management unit (IOMMU) could allow a privileged attacker to cause non-coherent accesses by the AMD secure processor (ASP) potentially resulting in loss of integrity.

CVSS v3
4.0
EG Score
4.0(medium)
EPSS
2.7%
KEV
Not listed

Published

June 9, 2026

Last Modified

June 9, 2026

References (1)

Vendor Advisories for CVE-2025-54509(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 17× in last 7d / 90× 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.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-05 13:33 UTCEG score recompute
  4. 2026-07-05 13:33 UTCGHSA enrichment
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-04 13:22 UTCEG score recompute
  7. 2026-07-04 13:22 UTCGHSA enrichment
  8. 2026-07-04 06:30 UTCEPSS rescore
  9. 2026-07-03 08:46 UTCEG score recompute
  10. 2026-07-03 08:46 UTCGHSA enrichment
  11. 2026-07-02 17:01 UTCEPSS rescore
  12. 2026-07-02 07:49 UTCEG score recompute
  13. 2026-07-02 07:48 UTCGHSA enrichment
  14. 2026-07-01 08:37 UTCEG score recompute
  15. 2026-07-01 08:37 UTCGHSA enrichment
  16. 2026-06-30 09:25 UTCEG score recompute
  17. 2026-06-30 09:25 UTCGHSA enrichment
  18. 2026-06-29 14:06 UTCEPSS rescore
  19. 2026-06-29 14:06 UTCEPSS rescore
  20. 2026-06-29 10:14 UTCEG score recompute
  21. 2026-06-29 10:14 UTCGHSA enrichment
  22. 2026-06-28 14:07 UTCEPSS rescore
  23. 2026-06-28 14:07 UTCEPSS rescore
  24. 2026-06-28 10:55 UTCEG score recompute
  25. 2026-06-28 10:55 UTCGHSA enrichment
Show 65 more
  1. 2026-06-28 04:55 UTCEPSS rescore
  2. 2026-06-27 11:43 UTCEG score recompute
  3. 2026-06-27 11:43 UTCGHSA enrichment
  4. 2026-06-27 03:08 UTCEPSS rescore
  5. 2026-06-27 03:08 UTCEPSS rescore
  6. 2026-06-26 12:32 UTCEG score recompute
  7. 2026-06-26 12:31 UTCGHSA enrichment
  8. 2026-06-25 13:49 UTCEPSS rescore
  9. 2026-06-25 10:15 UTCEG score recompute
  10. 2026-06-25 10:15 UTCGHSA enrichment
  11. 2026-06-24 14:04 UTCEPSS rescore
  12. 2026-06-24 14:04 UTCEPSS rescore
  13. 2026-06-24 10:56 UTCEG score recompute
  14. 2026-06-24 10:56 UTCGHSA enrichment
  15. 2026-06-23 21:32 UTCEPSS rescore
  16. 2026-06-23 10:55 UTCEG score recompute
  17. 2026-06-23 10:55 UTCGHSA enrichment
  18. 2026-06-22 14:25 UTCEPSS rescore
  19. 2026-06-22 11:36 UTCEG score recompute
  20. 2026-06-22 11:36 UTCGHSA enrichment
  21. 2026-06-21 14:56 UTCEPSS rescore
  22. 2026-06-21 14:56 UTCEPSS rescore
  23. 2026-06-21 12:13 UTCEG score recompute
  24. 2026-06-21 12:13 UTCGHSA enrichment
  25. 2026-06-21 01:59 UTCEPSS rescore
  26. 2026-06-21 01:59 UTCEPSS rescore
  27. 2026-06-20 12:57 UTCEG score recompute
  28. 2026-06-20 12:57 UTCGHSA enrichment
  29. 2026-06-19 19:25 UTCEPSS rescore
  30. 2026-06-19 19:25 UTCEPSS rescore
  31. 2026-06-19 13:45 UTCEG score recompute
  32. 2026-06-19 13:45 UTCGHSA enrichment
  33. 2026-06-18 17:52 UTCEPSS rescore
  34. 2026-06-18 17:52 UTCEPSS rescore
  35. 2026-06-18 14:16 UTCEG score recompute
  36. 2026-06-18 14:16 UTCGHSA enrichment
  37. 2026-06-17 17:52 UTCEPSS rescore
  38. 2026-06-17 15:01 UTCEG score recompute
  39. 2026-06-17 15:01 UTCGHSA enrichment
  40. 2026-06-16 15:50 UTCEG score recompute
  41. 2026-06-16 15:50 UTCGHSA enrichment
  42. 2026-06-15 17:48 UTCEPSS rescore
  43. 2026-06-15 16:39 UTCEG score recompute
  44. 2026-06-15 16:39 UTCGHSA enrichment
  45. 2026-06-14 23:17 UTCEPSS rescore
  46. 2026-06-14 17:27 UTCEG score recompute
  47. 2026-06-14 17:26 UTCGHSA enrichment
  48. 2026-06-13 18:15 UTCEG score recompute
  49. 2026-06-13 18:15 UTCGHSA enrichment
  50. 2026-06-12 23:11 UTCEPSS rescore
  51. 2026-06-12 18:54 UTCEG score recompute
  52. 2026-06-12 18:54 UTCGHSA enrichment
  53. 2026-06-11 19:43 UTCEG score recompute
  54. 2026-06-11 19:43 UTCGHSA enrichment
  55. 2026-06-11 14:00 UTCEPSS rescore
  56. 2026-06-11 14:00 UTCEPSS rescore
  57. 2026-06-10 22:18 UTCEPSS rescore
  58. 2026-06-10 22:18 UTCEPSS rescore
  59. 2026-06-10 20:31 UTCEG score recompute
  60. 2026-06-10 20:31 UTCGHSA enrichment
  61. 2026-06-09 21:19 UTCEG score recompute▲ 4.00
  62. 2026-06-09 21:19 UTCGHSA enrichment
  63. 2026-06-09 21:17 UTCNVD updateCVSS v3 → 4 · CVSS v4 → 4
  64. 2026-06-09 19:19 UTCEG score recompute
  65. 2026-06-09 19:19 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2025-54509?
CVE-2025-54509 is a medium vulnerability published on June 9, 2026. Improper access control for register interface in the input-output memory management unit (IOMMU) could allow a privileged attacker to cause non-coherent accesses by the AMD secure processor (ASP) potentially resulting in loss of integrity.
When was CVE-2025-54509 disclosed?
CVE-2025-54509 was first published in the National Vulnerability Database on June 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-54509 actively exploited?
CVE-2025-54509 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-54509?
CVE-2025-54509 has a CVSS v3 base score of 4.0 (NVD).
How do I remediate CVE-2025-54509?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-54509, 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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