CVE-2026-20905

MEDIUMNVD 6.66.6—
EchelonGraph scoreMEDIUM confidence

Score 6.6 from GitHub Security Advisory published 2026-05-12. NVD baseline CVSS 6.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.6
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.6Exploit: NoneExposed: 0

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

Improper input validation for some Intel(R) QAT software drivers for Windows before version 2.6 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

CVSS v3
6.6
EG Score
6.6(medium)
EPSS
1.0%
KEV
Not listed

Published

May 12, 2026

Last Modified

May 15, 2026

Advisory Details (1)

Auto-updated Jun 12, 2026
No patch confirmed yet.
generic

INTEL-SA-01387

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01387.html

Vendor Advisories for CVE-2026-20905(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 8× in last 7d / 39× 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 122 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-20905?
CVE-2026-20905 is a medium vulnerability published on May 12, 2026. Improper input validation for some Intel(R) QAT software drivers for Windows before version 2.6 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result…
When was CVE-2026-20905 disclosed?
CVE-2026-20905 was first published in the National Vulnerability Database on May 12, 2026, with the most recent update on May 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20905 actively exploited?
CVE-2026-20905 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-2026-20905?
CVE-2026-20905 has a CVSS v3 base score of 6.6 (NVD).
How do I remediate CVE-2026-20905?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20905, 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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