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MailenableApplication

CVE-2025-34424

HIGH · 7.8 CVSS v3.1 Published 2025-12-10
Fix available
A fix is available. Upgrade to 10.54 or later.
See remediation →
80/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

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

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

MailEnable versions before 10.54 suffer from an unsafe DLL loading vulnerability in the administrative executable, which attempts to load MEAIDP.DLL from its installation directory without secure path validation. A local attacker with write access to the MailEnable installation directory can plant a malicious DLL that gets loaded with the same privileges as the administrative process, achieving local arbitrary code execution.

MitigationUpgrade MailEnable to version 10.54 or later to obtain the patched binaries, and restrict write permissions on the MailEnable installation directory to prevent untrusted users from planting malicious DLLs.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
MailenableApplication
Affected:< 10.54

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Locate MailEnable installation directory
    Look for the MailEnable installation folder, typically in C:\Program Files\MailEnable or C:\Program Files (x86)\MailEnable. Check registry key HKLM\SOFTWARE\MailEnable\Install_Dir for the installation path.
    Affected if MailEnable is installed and the installation directory exists.
  2. Identify the installed MailEnable version
    Open the MailEnable version information. This is often available in the installation directory or via the MailEnable Administrator console under 'About' or 'System' information. Compare the version number to 10.54.
    Affected if The installed version is lower than 10.54 (for example, 10.53, 10.52, etc.).
  3. Check for the vulnerable DLL file
    Locate MEAIDP.DLL in the MailEnable installation directory. Verify the administrative executable (the one used to launch MailEnable Administrator) loads this DLL from the same directory without secure path validation.
    Affected if MEAIDP.DLL exists in the installation directory and is loaded by the administrative executable without full path specification.
  4. Assess directory write permissions
    Review file system permissions on the MailEnable installation directory. Determine which users or groups have write access to this folder.
    Affected if Users other than Administrators or SYSTEM have write permissions to the MailEnable installation directory, allowing them to plant a malicious DLL.

You are affected if MailEnable version is below 10.54 AND the installation directory is writable to non-privileged users, enabling DLL planting for arbitrary code execution.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 10.54 or later
Fixed in 10.54
Interim mitigation

Upgrade MailEnable to version 10.54 or later to obtain the patched binaries, and restrict write permissions on the MailEnable installation directory to prevent untrusted users from planting malicious DLLs.

Recommended fix High confidence

10.54

  1. 1. Download MailEnable version 10.54 or later from the official vendor website (mailenable.com)
  2. 2. Create a full backup of the current MailEnable installation directory and configuration files
  3. 3. Stop all MailEnable services to ensure a clean update process
  4. 4. Run the MailEnable installer to upgrade to version 10.54
  5. 5. Verify the MEAIDP.DLL file in the installation directory is the legitimate version from the vendor
  6. 6. Restart MailEnable services and verify the administrative console functions correctly
  7. 7. Review application logs to confirm normal operation

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Mailenable Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-34424 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data