CVE-2026-125393
MailEnable Enterprise Premium before 10.62 Heap Overflow via IMAP X-FB-FETCH
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-122 |
| Vendor | mailenable |
| Product | mailenable enterprise premium |
| Published | Nov 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
MailEnable / MailEnable Enterprise Premium
0 < 10.62
References
Credits
Jobe Predo