CVE-2026-42895

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-06-19. 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
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

June 19, 2026

Last Modified

July 28, 2026

Advisory Details (1)

Auto-updated Jun 22, 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-2026-42895

Vendor Advisories for CVE-2026-42895(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 / 74× 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 103 total refreshes for this CVE.

  1. 2026-07-28 22:48 UTCEG score recompute
  2. 2026-07-28 22:48 UTCVendor advisory
  3. 2026-07-28 22:47 UTCGHSA enrichment
  4. 2026-07-28 15:36 UTCEPSS rescore
  5. 2026-07-27 18:02 UTCEG score recompute
  6. 2026-07-27 18:02 UTCVendor advisory
  7. 2026-07-27 18:02 UTCGHSA enrichment
  8. 2026-07-27 14:13 UTCEPSS rescore
  9. 2026-07-26 16:47 UTCEG score recompute
  10. 2026-07-26 16:47 UTCVendor advisory
  11. 2026-07-26 16:47 UTCGHSA enrichment
  12. 2026-07-26 14:54 UTCEPSS rescore
  13. 2026-07-26 14:54 UTCEPSS rescore
  14. 2026-07-25 14:18 UTCEPSS rescore
  15. 2026-07-24 14:17 UTCEPSS rescore
  16. 2026-07-23 14:18 UTCEPSS rescore
  17. 2026-07-23 03:12 UTCEG score recompute
  18. 2026-07-22 14:08 UTCEPSS rescore
  19. 2026-07-21 15:24 UTCEPSS rescore
  20. 2026-07-20 17:08 UTCEPSS rescore
  21. 2026-07-19 14:31 UTCEPSS rescore
  22. 2026-07-19 02:29 UTCEPSS rescore
  23. 2026-07-18 10:04 UTCEPSS rescore
  24. 2026-07-17 03:34 UTCVendor advisory
  25. 2026-07-17 03:34 UTCGHSA enrichment
Show 75 more
  1. 2026-07-16 17:03 UTCEPSS rescore
  2. 2026-07-16 02:24 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-15 01:26 UTCGHSA enrichment
  6. 2026-07-14 00:28 UTCGHSA enrichment
  7. 2026-07-13 22:30 UTCEPSS rescore
  8. 2026-07-13 06:13 UTCEPSS rescore
  9. 2026-07-12 23:30 UTCVendor advisory
  10. 2026-07-12 23:29 UTCGHSA enrichment
  11. 2026-07-12 05:46 UTCEPSS rescore
  12. 2026-07-11 22:30 UTCVendor advisory
  13. 2026-07-11 22:30 UTCGHSA enrichment
  14. 2026-07-11 08:27 UTCEPSS rescore
  15. 2026-07-10 21:32 UTCVendor advisory
  16. 2026-07-10 21:32 UTCGHSA enrichment
  17. 2026-07-09 20:34 UTCVendor advisory
  18. 2026-07-09 20:34 UTCGHSA enrichment
  19. 2026-07-09 19:10 UTCEPSS rescore
  20. 2026-07-08 19:33 UTCVendor advisory
  21. 2026-07-08 19:33 UTCGHSA enrichment
  22. 2026-07-08 15:16 UTCEPSS rescore
  23. 2026-07-07 18:32 UTCVendor advisory
  24. 2026-07-07 18:32 UTCGHSA enrichment
  25. 2026-07-07 13:46 UTCEPSS rescore
  26. 2026-07-06 16:27 UTCEPSS rescore
  27. 2026-07-06 16:27 UTCEPSS rescore
  28. 2026-07-06 13:36 UTCVendor advisory
  29. 2026-07-06 13:36 UTCGHSA enrichment
  30. 2026-07-06 02:23 UTCEPSS rescore
  31. 2026-07-06 02:23 UTCEPSS rescore
  32. 2026-07-05 12:28 UTCVendor advisory
  33. 2026-07-05 12:28 UTCGHSA enrichment
  34. 2026-07-05 02:30 UTCEPSS rescore
  35. 2026-07-04 11:25 UTCVendor advisory
  36. 2026-07-04 11:25 UTCGHSA enrichment
  37. 2026-07-04 06:31 UTCEPSS rescore
  38. 2026-07-03 22:31 UTCMITRE cvelistV5CVSS v3 → 6.5 · severity → MEDIUM
  39. 2026-07-03 10:26 UTCVendor advisory
  40. 2026-07-03 10:26 UTCGHSA enrichment
  41. 2026-07-02 09:27 UTCVendor advisory
  42. 2026-07-02 09:27 UTCGHSA enrichment
  43. 2026-07-01 15:06 UTCEPSS rescore
  44. 2026-07-01 08:29 UTCVendor advisory
  45. 2026-07-01 08:29 UTCGHSA enrichment
  46. 2026-06-30 23:22 UTCEPSS rescore
  47. 2026-06-30 07:31 UTCVendor advisory
  48. 2026-06-30 07:31 UTCGHSA enrichment
  49. 2026-06-29 14:06 UTCEPSS rescore
  50. 2026-06-29 06:30 UTCVendor advisory
  51. 2026-06-29 06:29 UTCGHSA enrichment
  52. 2026-06-28 14:07 UTCEPSS rescore
  53. 2026-06-28 05:29 UTCVendor advisory
  54. 2026-06-28 05:29 UTCGHSA enrichment
  55. 2026-06-28 04:56 UTCEPSS rescore
  56. 2026-06-27 04:31 UTCVendor advisory
  57. 2026-06-27 04:31 UTCGHSA enrichment
  58. 2026-06-27 03:08 UTCEPSS rescore
  59. 2026-06-26 21:42 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  60. 2026-06-26 03:33 UTCVendor advisory
  61. 2026-06-26 03:33 UTCGHSA enrichment
  62. 2026-06-25 13:49 UTCEPSS rescore
  63. 2026-06-25 13:49 UTCEPSS rescore
  64. 2026-06-25 02:33 UTCVendor advisory
  65. 2026-06-25 02:33 UTCGHSA enrichment
  66. 2026-06-24 14:05 UTCEPSS rescore
  67. 2026-06-24 01:36 UTCVendor advisory
  68. 2026-06-24 01:35 UTCGHSA enrichment
  69. 2026-06-23 21:33 UTCEPSS rescore
  70. 2026-06-23 00:37 UTCVendor advisory
  71. 2026-06-23 00:36 UTCGHSA enrichment
  72. 2026-06-21 23:36 UTCVendor advisory
  73. 2026-06-21 23:36 UTCGHSA enrichment
  74. 2026-06-20 22:35 UTCVendor advisory
  75. 2026-06-20 22:35 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-42895?
CVE-2026-42895 is a medium vulnerability published on June 19, 2026. Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.
When was CVE-2026-42895 disclosed?
CVE-2026-42895 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42895 actively exploited?
CVE-2026-42895 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.4% of all scored CVEs.
What is the CVSS score of CVE-2026-42895?
CVE-2026-42895 has a CVSS v4.0 base score of 6.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-42895?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42895, 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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