Vulnerability · Published Dec 9, 2025 · Assigned by VulnCheck
CVE-2025-34396MailEnable < 10.54 DLL Hijacking via Unsafe Loading of MEAINFY.DLL
High 8.5
In plain English
A high-severity uncontrolled search path in MailEnable from MailEnable. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Official description
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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MailEnable | MailEnable | 0 – before 10.54 |
Weakness: CWE-427 · 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
References
- https://mailenable.com/Standard-ReleaseNotes.txt release-notes, patch
- https://www.mailenable.com/ product
- https://www.vulncheck.com/advisories/mailenable-dll-hijacking-via-unsafe-loading-of-meainfy-dll third-party-advisory