CVE-2006-6400

NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 3%CVSS: —Exploit: NoneExposed: 0

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

Buffer overflow in JustSystems Hanako 2004 through 2006, Hanako viewer 1.x, Ichitaro 2004, Ichitaro 2005, Ichitaro Lite2, Ichitaro viewer 4.x, and Sanshiro 2005 allows remote attackers to execute arbitrary code via the (1) Keyword and (2) Title fields, related to string length fields.

CVSS v3
—
EG Score
0.0(none)
EG Risk
0
EG Risk 0/100

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. It is distinct from the 0–10 EG Score, which measures severity.

EPSS
86.1%
KEV
Not listed

Published

December 10, 2006

Last Modified

April 23, 2026

References (14)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 32× 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. 2026-07-23 00:52 UTCEG score recompute
  2. 2026-07-23 00:31 UTCEG score recompute
  3. 2026-07-22 23:56 UTCEG score recompute
  4. 2026-07-22 21:36 UTCEG score recompute
  5. 2026-07-22 14:03 UTCEPSS rescore
  6. 2026-07-21 15:19 UTCEPSS rescore
  7. 2026-07-20 17:02 UTCEPSS rescore
  8. 2026-07-16 16:58 UTCEPSS rescore
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  22. 2026-06-30 23:18 UTCEPSS rescore
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  1. 2026-06-28 04:52 UTCEPSS rescore
  2. 2026-06-25 13:46 UTCEPSS rescore
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  4. 2026-06-24 14:02 UTCEPSS rescore
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  6. 2026-06-23 21:29 UTCEPSS rescore
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  8. 2026-06-19 19:22 UTCEPSS rescore
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  10. 2026-06-18 17:49 UTCEPSS rescore
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  17. 2026-06-13 22:57 UTCEPSS rescore
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  23. 2026-06-05 22:44 UTCEPSS rescore
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  30. 2026-06-01 13:49 UTCEPSS rescore
  31. 2026-06-01 13:49 UTCEPSS rescore
  32. 2026-05-31 22:28 UTCEPSS rescore
  33. 2026-05-31 22:28 UTCEPSS rescore
  34. 2026-05-31 05:28 UTCEG score recompute
  35. 2026-05-31 05:28 UTCGHSA enrichment
  36. 2026-05-31 00:13 UTCEPSS rescore
  37. 2026-05-31 00:13 UTCEPSS rescore
  38. 2026-05-29 13:40 UTCEPSS rescore
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  41. 2026-05-27 13:37 UTCEPSS rescore
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  43. 2026-05-26 13:41 UTCEPSS rescore
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  45. 2026-05-24 16:42 UTCEPSS rescore
  46. 2026-05-22 21:15 UTCEPSS rescore
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  48. 2026-05-22 21:15 UTCEPSS rescore
  49. 2026-05-21 22:38 UTCEPSS rescore
  50. 2026-05-20 22:36 UTCEPSS rescore
  51. 2026-05-20 11:20 UTCEPSS rescore
  52. 2026-05-20 11:20 UTCEPSS rescore
  53. 2026-05-18 21:29 UTCEPSS rescore
  54. 2026-05-18 21:29 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2006-6400?
CVE-2006-6400 is a none vulnerability published on December 10, 2006. Buffer overflow in JustSystems Hanako 2004 through 2006, Hanako viewer 1.x, Ichitaro 2004, Ichitaro 2005, Ichitaro Lite2, Ichitaro viewer 4.x, and Sanshiro 2005 allows remote attackers to execute arbitrary code via the (1) Keyword and (2) Title fields, related to string length fields.
When was CVE-2006-6400 disclosed?
CVE-2006-6400 was first published in the National Vulnerability Database on December 10, 2006, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2006-6400 actively exploited?
CVE-2006-6400 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 86.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2006-6400?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2006-6400, 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.

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