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TI-2018-00639 Aliases CVE-2018-0684GHSA-hxr6-gvvg-37vq

Memory corruption in NEOJAPAN Inc. Denbun by NEOJAPAN Inc.

Priority MEDIUM 48CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

Buffer overflow in Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R3.0 and earlier, Denbun IMAP version V3.3I R3.0 and earlier) allows remote attackers to execute arbitrary code or cause a denial-of-service (DoS) condition via multipart/form-data format data.

Why it matters now

EPSS 0.03584 89th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
NEOJAPAN Inc.Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R3.0 and earlier, Denbun IMAP version V3.3I R3.0 and earlier)Denbun POP version V3.3P R3.0 and earlier, Denbun IMAP version V3.3I R3.0 and earlier—No fix listedCNA
  • Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R3.0 and earlier, Denbun IMAP version V3.3I R3.0 and earlier) VendorNEOJAPAN Inc. Affected Denbun POP version V3.3P R3.0 and earlier, Denbun IMAP version V3.3I R3.0 and earlier Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:neo:debun_imap:*:*:*:*:*:*:*:*up to 3.3i_r4.0VulnerableNeo
cpe:2.3:a:neo:debun_pop:*:*:*:*:*:*:*:*up to 3.3p_r4.0VulnerableNeo
  • cpe:2.3:a:neo:debun_imap:*:*:*:*:*:*:*:* Versions up to 3.3i_r4.0 Vulnerable ·Neo
  • cpe:2.3:a:neo:debun_pop:*:*:*:*:*:*:*:* Versions up to 3.3p_r4.0 Vulnerable ·Neo

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-0684
  2. 2026-10-03 Alias added: GHSA-hxr6-gvvg-37vq

References

Advisory 3

  • TI-2018-00638 Memory corruption in NEOJAPAN Inc. Denbun by NEOJAPAN Inc. CVSS 3.0CRITICAL 9.8
  • TI-2018-00637 Denbun by NEOJAPAN Inc. CVSS 3.0CRITICAL 9.8
  • TI-2018-00636 Hard-coded credentials in NEOJAPAN Inc. Denbun by NEOJAPAN Inc. CVSS 3.0CRITICAL 9.8
  • TI-2018-00635 Hard-coded credentials in NEOJAPAN Inc. Denbun by NEOJAPAN Inc. CVSS 3.0CRITICAL 9.8
  • TI-2018-00641 Unrestricted file upload in NEOJAPAN Inc. Denbun by NEOJAPAN Inc. CVSS 3.0HIGH 8.8
  • TI-2018-00640 SQL injection in NEOJAPAN Inc. Denbun POP version V3.3P R4.0 and earlier CVSS 3.0HIGH 8.8
See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences