CVE-2026-42895

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH 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 — 5 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: 0%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 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(high)
EPSS
31.9%
KEV
Not listed

Published

June 19, 2026

Last Modified

July 1, 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 30× in last 7d / 69× 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.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 13:36 UTCEG score recompute
  4. 2026-07-06 13:36 UTCVendor advisory
  5. 2026-07-06 13:36 UTCGHSA enrichment
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-05 12:28 UTCEG score recompute
  9. 2026-07-05 12:28 UTCVendor advisory
  10. 2026-07-05 12:28 UTCGHSA enrichment
  11. 2026-07-05 02:30 UTCEPSS rescore
  12. 2026-07-04 11:25 UTCEG score recompute
  13. 2026-07-04 11:25 UTCVendor advisory
  14. 2026-07-04 11:25 UTCGHSA enrichment
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-03 22:31 UTCMITRE cvelistV5CVSS v3 → 6.5 · severity → MEDIUM
  17. 2026-07-03 10:26 UTCEG score recompute
  18. 2026-07-03 10:26 UTCVendor advisory
  19. 2026-07-03 10:26 UTCGHSA enrichment
  20. 2026-07-02 09:27 UTCEG score recompute
  21. 2026-07-02 09:27 UTCVendor advisory
  22. 2026-07-02 09:27 UTCGHSA enrichment
  23. 2026-07-01 15:06 UTCEPSS rescore
  24. 2026-07-01 08:29 UTCEG score recompute
  25. 2026-07-01 08:29 UTCVendor advisory
Show 44 more
  1. 2026-07-01 08:29 UTCGHSA enrichment
  2. 2026-06-30 23:22 UTCEPSS rescore
  3. 2026-06-30 07:31 UTCEG score recompute
  4. 2026-06-30 07:31 UTCVendor advisory
  5. 2026-06-30 07:31 UTCGHSA enrichment
  6. 2026-06-29 14:06 UTCEPSS rescore
  7. 2026-06-29 06:30 UTCEG score recompute
  8. 2026-06-29 06:30 UTCVendor advisory
  9. 2026-06-29 06:29 UTCGHSA enrichment
  10. 2026-06-28 14:07 UTCEPSS rescore
  11. 2026-06-28 05:29 UTCEG score recompute
  12. 2026-06-28 05:29 UTCVendor advisory
  13. 2026-06-28 05:29 UTCGHSA enrichment
  14. 2026-06-28 04:56 UTCEPSS rescore
  15. 2026-06-27 04:31 UTCEG score recompute
  16. 2026-06-27 04:31 UTCVendor advisory
  17. 2026-06-27 04:31 UTCGHSA enrichment
  18. 2026-06-27 03:08 UTCEPSS rescore
  19. 2026-06-26 21:42 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  20. 2026-06-26 03:33 UTCEG score recompute
  21. 2026-06-26 03:33 UTCVendor advisory
  22. 2026-06-26 03:33 UTCGHSA enrichment
  23. 2026-06-25 13:49 UTCEPSS rescore
  24. 2026-06-25 13:49 UTCEPSS rescore
  25. 2026-06-25 02:33 UTCEG score recompute
  26. 2026-06-25 02:33 UTCVendor advisory
  27. 2026-06-25 02:33 UTCGHSA enrichment
  28. 2026-06-24 14:05 UTCEPSS rescore
  29. 2026-06-24 01:36 UTCEG score recompute
  30. 2026-06-24 01:36 UTCVendor advisory
  31. 2026-06-24 01:35 UTCGHSA enrichment
  32. 2026-06-23 21:33 UTCEPSS rescore
  33. 2026-06-23 00:37 UTCEG score recompute
  34. 2026-06-23 00:37 UTCVendor advisory
  35. 2026-06-23 00:36 UTCGHSA enrichment
  36. 2026-06-21 23:36 UTCEG score recompute
  37. 2026-06-21 23:36 UTCVendor advisory
  38. 2026-06-21 23:36 UTCGHSA enrichment
  39. 2026-06-20 22:35 UTCEG score recompute
  40. 2026-06-20 22:35 UTCVendor advisory
  41. 2026-06-20 22:35 UTCGHSA enrichment
  42. 2026-06-19 21:37 UTCEG score recompute
  43. 2026-06-19 21:37 UTCVendor advisory
  44. 2026-06-19 21:37 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 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42895 actively exploited?
CVE-2026-42895 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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

Explore the affected products and dependency analysis for CVE-2026-42895

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