CVE-2026-21383

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-06. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, 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.

Cryptographic Issue when using a static initialization vector for AES-GCM key wrapping, which requires a unique value for each call to ensure security.

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

July 6, 2026

Last Modified

July 8, 2026

Advisory Details (1)

Auto-updated Jul 7, 2026
No patch confirmed yet.
generic

Qualcomm Documentation

https://docs.qualcomm.com/product/publicresources/securitybulletin/july-2026-bulletin.html

Vendor Advisories for CVE-2026-21383(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 11× in last 7d / 50× 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 149 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-21383?
CVE-2026-21383 is a high vulnerability published on July 6, 2026. Cryptographic Issue when using a static initialization vector for AES-GCM key wrapping, which requires a unique value for each call to ensure security.
When was CVE-2026-21383 disclosed?
CVE-2026-21383 was first published in the National Vulnerability Database on July 6, 2026, with the most recent update on July 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21383 actively exploited?
CVE-2026-21383 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 99.0% of all scored CVEs.
What is the CVSS score of CVE-2026-21383?
CVE-2026-21383 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-21383?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21383, 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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