CVE-2026-27859 in Open-Xchange OX Dovecot Proinformación

Resumen (Inglés)

A mail message containing excessive amount of RFC 2231 MIME parameters causes LMTP to use too much CPU. A suitably formatted mail message causes mail delivery process to consume large amounts of CPU time. Use MTA capabilities to limit RFC 2231 MIME parameters in mail messages, or upgrade to fixed version where the processing is limited. No publicly available exploits are known.

Reservar

2026-02-24

Divulgación

2026-03-27

Voces

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerabilidad	CWE	Exp	Con	CVE
353848	Open-Xchange OX Dovecot Pro Mail Message denegación de servicio	400	No está definido	Arreglo oficial	CVE-2026-27859

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