CVE-2018-0684

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-11-15 · updated 2026-06-17
Weakness: CWE-119

Description

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.

Affected products

Neo Debun Imap: through 3.3i_r4.0
NEOJAPAN Inc. Denbun POP version V3.3P R4.0 and earlier: through 3.3p_r4.0

References

http://jvn.jp/en/jp/JVN00344155/index.html
https://www.denbun.com/en/imap/support/security/181003.html
https://www.denbun.com/en/pop/support/security/181003.html
http://jvn.jp/en/jp/JVN00344155/index.html
https://www.denbun.com/en/imap/support/security/181003.html
https://www.denbun.com/en/pop/support/security/181003.html

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