🛡️ CVE-2025-34420 — mailenable

🟠 CVSS 7.8 — High ✅ No Known Exploit CWE-427 NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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 MEAIAM.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 MEAIAM.DLL, which is then loaded on execution, resulting in attacker-controlled code running with the privileges of the process.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2025-34420 is classified as CWE-427: Uncontrolled Search Path Element. A writable directory appears in a search path, so a planted file can be loaded in place of the intended one.

Affected software

CVE-2025-34420 is recorded against 1 package.

  • mailenable (fixed in 10.54)

Timeline and source

Published on 10 December 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

mailenable.com
www.mailenable.com
www.vulncheck.com

Details

Severity HIGH
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-427
Public Exploit ✅ No
Source NVD
Published 2025-12-10
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
mailenable — 10.54

Similar Threats

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