high · CVSS v3 6.5 · CVSS v4 7.1

CVE-2026-125393

MailEnable Enterprise Premium before 10.62 contains a heap overflow vulnerability in the IMAP X-FB-FETCH command that al…

Description

MailEnable Enterprise Premium before 10.62 contains a heap overflow vulnerability in the IMAP X-FB-FETCH command that allows authenticated users to overflow a fixed 0x400-byte heap buffer. Attackers can supply an X-FB-USER address longer than about 1016 bytes, which is formatted without a length check, to crash the IMAP service and cause denial of service.

Scores

Severity
high
CVSS v2
6.8
CVSS v3
6.5
CVSS v4
7.1
EPSS
—

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