Vulnerability · Published Dec 10, 2025 · Assigned by VulnCheck
CVE-2025-34423MailEnable < 10.54 DLL Hijacking via Unsafe Loading of MEAIAU.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 6% 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 MEAIAU.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 MEAIAU.DLL, which is then loaded on execution, resulting in attacker-controlled code running with the privileges of the process.
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-meaiau-dll third-party-advisory