CVE-2018-8406

CRITICALNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-28), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 3%CVSS: 7.8Exploit: cisa kev · ssvc active · kev ransomwareExposed: 0

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

An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory, aka "DirectX Graphics Kernel Elevation of Privilege Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8400, CVE-2018-8401, CVE-2018-8405.

CVSS v3
7.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
3%
EPSS %ILE
88%
KEV
⚠ Exploited

Published

August 15, 2018

Last Modified

October 28, 2025

Advisory Details (4)

Auto-updated Jun 4, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: microsoft, cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8406
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8406
generic
http://www.securitytracker.com/id/1041461
generic
http://www.securityfocus.com/bid/105012

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 108× in last 7d / 442× 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 1,603 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2018-8406?
CVE-2018-8406 is a critical vulnerability published on August 15, 2018. An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory, aka "DirectX Graphics Kernel Elevation of Privilege Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers. This CVE ID is unique from…
When was CVE-2018-8406 disclosed?
CVE-2018-8406 was first published in the National Vulnerability Database on August 15, 2018, with the most recent update on October 28, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-8406 actively exploited?
Yes. CISA added CVE-2018-8406 to the Known Exploited Vulnerabilities catalog on March 28, 2022, affecting Microsoft DirectX Graphics Kernel (DXGKRNL). KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2018-8406?
CVE-2018-8406 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2018-8406?
CVE-2018-8406 affects Microsoft DirectX Graphics Kernel (DXGKRNL). The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2018-8406?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-8406, 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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