CVE-2025-34396: MailEnable < 10.54 DLL Hijacking via Unsafe Loading of MEAINFY.DLL

Published Dec 9, 2025
·
Updated

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 MEAINFY.DLL from its application directo without sufficient integrity validation or secure search order. If the DLL is missing or attacker-writable locations in the search path are used, a local attacker with write permissions to the directory can plant a malicious MEAINFY.DLL. When the executable is launched, it loads the attacker-controlled library and executes code with the privileges of the process, enabling local privilege escalation when run with elevated rights.

Affected Software

2 affected components
MailEnable MailEnable<10.54
MailEnable MailEnable<10.54

Event History

Dec 9, 2025
CVE Published
via MITRE·06:11 PM
Data Sourced
via MITRE·06:11 PM
DescriptionWeakness
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2025-34396?

CVE-2025-34396 has a critical severity rating due to the potential for local arbitrary code execution.

2

How do I fix CVE-2025-34396?

To fix CVE-2025-34396, upgrade MailEnable to version 10.54 or later.

3

Who is affected by CVE-2025-34396?

MailEnable versions prior to 10.54 are affected by CVE-2025-34396.

4

What kind of vulnerability is CVE-2025-34396?

CVE-2025-34396 is an unsafe DLL loading vulnerability.

5

What are the consequences of exploiting CVE-2025-34396?

Exploiting CVE-2025-34396 can lead to local arbitrary code execution on the affected system.

Contact

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