CVE-2023-20585

MEDIUMNVD 5.65.6—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.6 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 95% 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, nvd
5.6
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.6Exploit: NoneExposed: 0

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

Insufficient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised hypervisor to trigger an out of bounds condition without RMP checks, resulting in a potential loss of confidential guest integrity.

CVSS v3
5.6
EG Score
5.6(medium)
EPSS
1.0%
KEV
Not listed

Published

April 16, 2026

Last Modified

April 17, 2026

References (1)

Vendor Advisories for CVE-2023-20585(2)

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 6× in last 7d / 36× 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 133 total refreshes for this CVE.

  1. 2026-07-22 14:06 UTCEPSS rescore
  2. 2026-07-20 17:05 UTCEPSS rescore
  3. 2026-07-19 14:29 UTCEPSS rescore
  4. 2026-07-19 14:29 UTCEPSS rescore
  5. 2026-07-16 17:01 UTCEPSS rescore
  6. 2026-07-16 17:01 UTCEPSS rescore
  7. 2026-07-15 16:56 UTCEPSS rescore
  8. 2026-07-15 01:58 UTCEPSS rescore
  9. 2026-07-15 01:58 UTCEPSS rescore
  10. 2026-07-13 22:28 UTCEPSS rescore
  11. 2026-07-13 22:28 UTCEPSS rescore
  12. 2026-07-13 06:11 UTCEPSS rescore
  13. 2026-07-12 05:45 UTCEPSS rescore
  14. 2026-07-12 05:45 UTCEPSS rescore
  15. 2026-07-09 19:08 UTCEPSS rescore
  16. 2026-07-08 15:13 UTCEPSS rescore
  17. 2026-07-06 16:26 UTCEPSS rescore
  18. 2026-07-06 16:25 UTCEPSS rescore
  19. 2026-07-06 02:21 UTCEPSS rescore
  20. 2026-07-04 06:29 UTCEPSS rescore
  21. 2026-07-04 06:29 UTCEPSS rescore
  22. 2026-07-02 16:58 UTCEPSS rescore
  23. 2026-07-01 15:04 UTCEPSS rescore
  24. 2026-06-30 23:21 UTCEPSS rescore
  25. 2026-06-29 14:04 UTCEPSS rescore
Show 75 more
  1. 2026-06-28 14:06 UTCEPSS rescore
  2. 2026-06-28 14:06 UTCEPSS rescore
  3. 2026-06-28 04:54 UTCEPSS rescore
  4. 2026-06-28 04:54 UTCEPSS rescore
  5. 2026-06-27 03:07 UTCEPSS rescore
  6. 2026-06-25 13:48 UTCEPSS rescore
  7. 2026-06-25 13:48 UTCEPSS rescore
  8. 2026-06-24 14:03 UTCEPSS rescore
  9. 2026-06-24 14:03 UTCEPSS rescore
  10. 2026-06-23 21:31 UTCEPSS rescore
  11. 2026-06-23 21:31 UTCEPSS rescore
  12. 2026-06-21 01:58 UTCEPSS rescore
  13. 2026-06-21 01:58 UTCEPSS rescore
  14. 2026-06-18 17:51 UTCEPSS rescore
  15. 2026-06-18 17:51 UTCEPSS rescore
  16. 2026-06-17 17:51 UTCEPSS rescore
  17. 2026-06-17 17:51 UTCEPSS rescore
  18. 2026-06-16 17:51 UTCEPSS rescore
  19. 2026-06-16 17:51 UTCEPSS rescore
  20. 2026-06-16 17:51 UTCEPSS rescore
  21. 2026-06-15 17:47 UTCEPSS rescore
  22. 2026-06-14 23:16 UTCEPSS rescore
  23. 2026-06-14 19:52 UTCVendor advisory
  24. 2026-06-14 19:52 UTCGHSA enrichment
  25. 2026-06-13 22:59 UTCEPSS rescore
  26. 2026-06-12 23:10 UTCEPSS rescore
  27. 2026-06-11 18:53 UTCVendor advisory
  28. 2026-06-11 18:53 UTCGHSA enrichment
  29. 2026-06-11 13:59 UTCEPSS rescore
  30. 2026-06-11 13:58 UTCEPSS rescore
  31. 2026-06-10 22:17 UTCEPSS rescore
  32. 2026-06-10 13:21 UTCEPSS rescore
  33. 2026-06-10 13:21 UTCEPSS rescore
  34. 2026-06-10 09:32 UTCVendor advisory
  35. 2026-06-10 09:32 UTCGHSA enrichment
  36. 2026-06-09 10:02 UTCVendor advisory
  37. 2026-06-09 10:02 UTCGHSA enrichment
  38. 2026-06-08 14:15 UTCEPSS rescore
  39. 2026-06-08 14:15 UTCEPSS rescore
  40. 2026-06-08 07:46 UTCVendor advisory
  41. 2026-06-08 07:46 UTCGHSA enrichment
  42. 2026-06-07 15:23 UTCEPSS rescore
  43. 2026-06-07 15:23 UTCEPSS rescore
  44. 2026-06-07 08:16 UTCVendor advisory
  45. 2026-06-07 08:16 UTCGHSA enrichment
  46. 2026-06-06 13:46 UTCEPSS rescore
  47. 2026-06-06 13:46 UTCEPSS rescore
  48. 2026-06-06 08:46 UTCVendor advisory
  49. 2026-06-06 08:46 UTCGHSA enrichment
  50. 2026-06-05 22:46 UTCEPSS rescore
  51. 2026-06-05 22:46 UTCEPSS rescore
  52. 2026-06-05 22:46 UTCEPSS rescore
  53. 2026-06-04 21:04 UTCVendor advisory
  54. 2026-06-04 21:04 UTCGHSA enrichment
  55. 2026-06-04 13:11 UTCEPSS rescore
  56. 2026-06-04 13:11 UTCEPSS rescore
  57. 2026-06-03 18:08 UTCVendor advisory
  58. 2026-06-03 18:08 UTCGHSA enrichment
  59. 2026-06-02 20:12 UTCEPSS rescore
  60. 2026-06-02 20:12 UTCEPSS rescore
  61. 2026-06-02 20:12 UTCEPSS rescore
  62. 2026-06-02 17:32 UTCVendor advisory
  63. 2026-06-02 17:32 UTCGHSA enrichment
  64. 2026-06-01 18:01 UTCEG score recompute▲ 5.60
  65. 2026-06-01 18:01 UTCVendor advisory
  66. 2026-06-01 18:01 UTCGHSA enrichment
  67. 2026-06-01 13:51 UTCEPSS rescore
  68. 2026-06-01 13:50 UTCEPSS rescore
  69. 2026-05-31 22:29 UTCEPSS rescore
  70. 2026-05-31 22:29 UTCEPSS rescore
  71. 2026-05-31 22:29 UTCEPSS rescore
  72. 2026-05-31 00:15 UTCEPSS rescore
  73. 2026-05-31 00:15 UTCEPSS rescore
  74. 2026-05-29 13:43 UTCEPSS rescore
  75. 2026-05-29 13:43 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-20585?
CVE-2023-20585 is a medium vulnerability published on April 16, 2026. Insufficient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised hypervisor to trigger an out of bounds condition without RMP checks, resulting in a potential loss of confidential guest integrity.
When was CVE-2023-20585 disclosed?
CVE-2023-20585 was first published in the National Vulnerability Database on April 16, 2026, with the most recent update on April 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-20585 actively exploited?
CVE-2023-20585 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-20585?
CVE-2023-20585 has a CVSS v3 base score of 5.6 (NVD).
How do I remediate CVE-2023-20585?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-20585, 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.

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