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
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 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
32(Track)
EG Risk 32/100SSVC: Track

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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
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 5× in last 7d / 32× 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 225 total refreshes for this CVE.

  1. 2026-09-15 03:06 UTCEPSS rescore
  2. 2026-09-14 06:06 UTCEG score recompute
  3. 2026-09-14 06:06 UTCGHSA enrichment
  4. 2026-09-11 14:49 UTCEPSS rescore
  5. 2026-09-11 09:33 UTCEPSS rescore
  6. 2026-09-08 21:57 UTCEPSS rescore
  7. 2026-09-07 15:58 UTCEPSS rescore
  8. 2026-09-06 13:45 UTCEPSS rescore
  9. 2026-09-05 15:25 UTCEPSS rescore
  10. 2026-09-04 13:57 UTCEPSS rescore
  11. 2026-09-04 05:03 UTCEPSS rescore
  12. 2026-09-01 13:51 UTCEPSS rescore
  13. 2026-08-30 19:14 UTCEPSS rescore
  14. 2026-08-30 01:19 UTCEPSS rescore
  15. 2026-08-28 21:38 UTCEPSS rescore
  16. 2026-08-27 14:22 UTCEPSS rescore
  17. 2026-08-26 14:43 UTCEPSS rescore
  18. 2026-08-25 03:51 UTCEG score recompute
  19. 2026-08-25 03:51 UTCGHSA enrichment
  20. 2026-08-24 14:13 UTCEPSS rescore
  21. 2026-08-23 13:50 UTCEG score recompute
  22. 2026-08-23 13:50 UTCGHSA enrichment
  23. 2026-08-21 23:46 UTCEPSS rescore
  24. 2026-08-21 14:50 UTCGHSA enrichment
  25. 2026-08-20 23:24 UTCEG score recompute
Show 75 more
  1. 2026-08-20 23:24 UTCGHSA enrichment
  2. 2026-08-20 22:52 UTCEPSS rescore
  3. 2026-08-20 10:16 UTCEG score recompute
  4. 2026-08-20 10:16 UTCGHSA enrichment
  5. 2026-08-19 17:01 UTCEPSS rescore
  6. 2026-08-18 13:45 UTCEPSS rescore
  7. 2026-08-17 13:44 UTCEPSS rescore
  8. 2026-08-17 04:45 UTCEG score recompute
  9. 2026-08-17 04:45 UTCGHSA enrichment
  10. 2026-08-16 14:53 UTCEPSS rescore
  11. 2026-08-16 04:24 UTCEG score recompute
  12. 2026-08-16 04:24 UTCGHSA enrichment
  13. 2026-08-16 02:11 UTCEPSS rescore
  14. 2026-08-15 15:20 UTCGHSA enrichment
  15. 2026-08-15 01:27 UTCEG score recompute
  16. 2026-08-15 01:27 UTCGHSA enrichment
  17. 2026-08-15 01:27 UTCEPSS rescore
  18. 2026-08-14 12:23 UTCGHSA enrichment
  19. 2026-08-13 23:20 UTCEG score recompute
  20. 2026-08-13 23:20 UTCGHSA enrichment
  21. 2026-08-13 21:57 UTCEPSS rescore
  22. 2026-08-13 03:41 UTCGHSA enrichment
  23. 2026-08-12 14:37 UTCGHSA enrichment
  24. 2026-08-12 01:21 UTCEG score recompute
  25. 2026-08-12 01:21 UTCGHSA enrichment
  26. 2026-08-11 13:38 UTCEPSS rescore
  27. 2026-08-11 12:17 UTCGHSA enrichment
  28. 2026-08-10 23:13 UTCEG score recompute
  29. 2026-08-10 23:13 UTCGHSA enrichment
  30. 2026-08-10 06:47 UTCGHSA enrichment
  31. 2026-08-09 17:43 UTCEG score recompute
  32. 2026-08-09 17:43 UTCGHSA enrichment
  33. 2026-08-09 13:44 UTCEPSS rescore
  34. 2026-08-09 04:39 UTCEG score recompute
  35. 2026-08-09 04:39 UTCGHSA enrichment
  36. 2026-08-08 16:34 UTCEPSS rescore
  37. 2026-08-08 15:35 UTCGHSA enrichment
  38. 2026-08-08 02:00 UTCEG score recompute
  39. 2026-08-08 02:00 UTCGHSA enrichment
  40. 2026-08-07 16:24 UTCEPSS rescore
  41. 2026-08-07 12:56 UTCGHSA enrichment
  42. 2026-08-06 23:53 UTCEG score recompute
  43. 2026-08-06 23:53 UTCGHSA enrichment
  44. 2026-08-06 13:44 UTCEPSS rescore
  45. 2026-08-06 09:44 UTCGHSA enrichment
  46. 2026-08-05 20:39 UTCEG score recompute
  47. 2026-08-05 20:39 UTCGHSA enrichment
  48. 2026-08-05 19:15 UTCEPSS rescore
  49. 2026-08-04 22:34 UTCEG score recompute
  50. 2026-08-04 22:34 UTCGHSA enrichment
  51. 2026-08-04 15:06 UTCEPSS rescore
  52. 2026-08-03 18:41 UTCEG score recompute
  53. 2026-08-03 18:41 UTCGHSA enrichment
  54. 2026-08-03 10:33 UTCEPSS rescore
  55. 2026-08-03 04:48 UTCGHSA enrichment
  56. 2026-08-02 15:43 UTCGHSA enrichment
  57. 2026-08-02 02:39 UTCGHSA enrichment
  58. 2026-08-01 13:35 UTCEG score recompute
  59. 2026-08-01 13:35 UTCGHSA enrichment
  60. 2026-08-01 04:13 UTCEPSS rescore
  61. 2026-07-31 18:48 UTCGHSA enrichment
  62. 2026-07-31 05:42 UTCEG score recompute
  63. 2026-07-31 05:42 UTCGHSA enrichment
  64. 2026-07-30 16:25 UTCEPSS rescore
  65. 2026-07-30 01:28 UTCEPSS rescore
  66. 2026-07-29 11:09 UTCEG score recompute
  67. 2026-07-29 11:09 UTCGHSA enrichment
  68. 2026-07-28 15:33 UTCEPSS rescore
  69. 2026-07-28 03:50 UTCEG score recompute
  70. 2026-07-28 03:50 UTCGHSA enrichment
  71. 2026-07-27 12:21 UTCGHSA enrichment
  72. 2026-07-26 23:16 UTCEG score recompute
  73. 2026-07-26 23:16 UTCGHSA enrichment
  74. 2026-07-26 14:52 UTCEPSS rescore
  75. 2026-07-25 14:15 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% probability of exploitation in the next 30 days, which ranks it in the top 99.2% of all scored CVEs.
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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