CVE-2026-42836

HIGHPre-NVD 7.07.0—
EchelonGraph scoreHIGH confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-06-09. the CNA's CVSS baseline 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
7.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.0Exploit: NoneExposed: 0

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

Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.

CVSS v3
7.0
EG Score
7.0(high)
EPSS
9.7%
KEV
Not listed

Published

June 9, 2026

Last Modified

July 1, 2026

Advisory Details (1)

Auto-updated Jun 11, 2026
Patch available. Sources: microsoft.
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

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

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42836

Vendor Advisories for CVE-2026-42836(2)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 41× in last 7d / 184× 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 184 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-42836?
CVE-2026-42836 is a high vulnerability published on June 9, 2026. Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.
When was CVE-2026-42836 disclosed?
CVE-2026-42836 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42836 actively exploited?
CVE-2026-42836 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-42836?
CVE-2026-42836 has a CVSS v4.0 base score of 7.0 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-42836?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42836, 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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