CVE-2021-46747

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 99% 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
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 0

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

Insufficient granularity of access control in ASP (AMD Secure Processor) may allow an attacker with an untrusted user space application to map sensitive SMN (System Management Network) apertures leading to a potential escalation of privileges.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
—
EPSS
0.9%
KEV
Not listed

Published

June 1, 2026

Last Modified

July 22, 2026

References (2)

Vendor Advisories for CVE-2021-46747(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 9× in last 7d / 56× 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 121 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2021-46747?
CVE-2021-46747 is a high vulnerability published on June 1, 2026. Insufficient granularity of access control in ASP (AMD Secure Processor) may allow an attacker with an untrusted user space application to map sensitive SMN (System Management Network) apertures leading to a potential escalation of privileges.
When was CVE-2021-46747 disclosed?
CVE-2021-46747 was first published in the National Vulnerability Database on June 1, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-46747 actively exploited?
CVE-2021-46747 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-46747?
CVE-2021-46747 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2021-46747?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-46747, 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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