CVE-2026-47644

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-06-05. the CNA's CVSS baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.5Exploit: NoneExposed: 0

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

Improper neutralization of special elements in output used by a downstream component ('injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to disclose information over a network.

CVSS v3
6.5
EG Score
6.5(medium)
EPSS
49.9%
KEV
Not listed

Published

June 4, 2026

Last Modified

July 1, 2026

Advisory Details (1)

Auto-updated Jun 12, 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-2026-47644

Vendor Advisories for CVE-2026-47644(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 18× in last 7d / 116× 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 127 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-47644?
CVE-2026-47644 is a medium vulnerability published on June 4, 2026. Improper neutralization of special elements in output used by a downstream component ('injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to disclose information over a network.
When was CVE-2026-47644 disclosed?
CVE-2026-47644 was first published in the National Vulnerability Database on June 4, 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-2026-47644 actively exploited?
CVE-2026-47644 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 49.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-47644?
CVE-2026-47644 has a CVSS v4.0 base score of 6.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-47644?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47644, 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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