CVE-2026-21046

HIGHPre-NVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.4 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
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.4Exploit: None knownExposed: 0

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

Time-of-check time-of-use race condition in fabricKeymaster trustlet prior to SMR Jul-2026 Release 1 allows local privileged attackers to execute arbitrary code.

CVSS v3
8.4
EG Score
8.4(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity84% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 11, 2026

Advisory Details (1)

Auto-updated Jul 10, 2026
No patch confirmed yet.
generic

Samsung Mobile Security

https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=07

Vendor Advisories for CVE-2026-21046(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 17× in last 7d / 100× 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 155 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-21046?
CVE-2026-21046 is a high vulnerability published on July 10, 2026. Time-of-check time-of-use race condition in fabricKeymaster trustlet prior to SMR Jul-2026 Release 1 allows local privileged attackers to execute arbitrary code.
When was CVE-2026-21046 disclosed?
CVE-2026-21046 was first published in the National Vulnerability Database on July 10, 2026, with the most recent update on July 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21046 actively exploited?
CVE-2026-21046 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 97.2% of all scored CVEs.
What is the CVSS score of CVE-2026-21046?
CVE-2026-21046 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2026-21046?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21046, 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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