CVE-2025-34419 HIGH

CVE-2025-34419: MailEnable < 10.54 DLL Hijacking via Unsafe Loading of MEAISM.DLL

Vendor Mailenable
Product MailEnable
Weakness CWE-427
Published December 10, 2025
Last update May 14, 2026

CVSS base score

8.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

MailEnable versions prior to 10.54 contain an unsafe DLL loading vulnerability that can lead to local arbitrary code execution. The MailEnable administrative executable attempts to load MEAISM.DLL from its installation directory without sufficient integrity validation or a secure search order. A local attacker with write access to that directory can plant a malicious MEAISM.DLL, which is then loaded when the executable starts, resulting in execution of attacker-controlled code with the privileges of the process.

Key dates

02Disclosure timeline

December 10, 2025 CVE published
May 14, 2026 Record updated