CVE-2026-50656

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-16. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this weekElevated
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 7.8Exploit: NoneExposed: 0

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

Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ". We are working to provide a high quality security update that addresses this vulnerability. We will provide information in this CVE when the update is available.

CVSS v3
7.8
EG Score
7.8(high)
EPSS
87.4%
KEV
Not listed

Published

June 16, 2026

Last Modified

July 1, 2026

Advisory Details (2)

Auto-updated Jun 16, 2026
Patch available. Sources: microsoft.
generic

GitHub - MSNightmare/RoguePlanet: RoguePlanet Windows Defender Vulnerability · GitHub

https://github.com/MSNightmare/RoguePlanet
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-2026-50656

Vendor Advisories for CVE-2026-50656(2)

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 45× in last 7d / 148× 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 148 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoC0xBlackash/CVE-2026-50656
    First seen Jun 18, 2026

    CVE-2026-50656

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-50656?
CVE-2026-50656 is a high vulnerability published on June 16, 2026. Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ". We are working to provide a high quality security update that addresses this vulnerability. We will provide information in this CVE when…
When was CVE-2026-50656 disclosed?
CVE-2026-50656 was first published in the National Vulnerability Database on June 16, 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-2026-50656 actively exploited?
CVE-2026-50656 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 87.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-50656?
CVE-2026-50656 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-50656?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50656, 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

Explore the affected products and dependency analysis for CVE-2026-50656

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