CVE-2025-34418

Local code execution via planted MEAIMF.DLL

Published Dec 10, 2025 · Updated Dec 10, 2025

Uncontrolled DLL loading in MailEnable before 10.54 allows local users to execute arbitrary code through a planted MEAIMF.DLL. The administrative executable loads MEAIMF.DLL from its installation directory without validating its integrity or enforcing a secure DLL search order. A local user must be able to write to that directory; the malicious library then runs at process privilege when the executable starts.

CVSS severity8.5
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled DLL loading in MailEnable before 10.54 allows local users to execute arbitrary code through a planted MEAIMF.DLL. The administrative executable loads MEAIMF.DLL from its installation directory without validating its integrity or enforcing a secure DLL search order. A local user must be able to write to that directory; the malicious library then runs at process privilege when the executable starts.

The record

CVE
CVE-2025-34418
Published
Dec 10, 2025
Updated
Dec 10, 2025
Vendor
MailEnable
Product
MailEnable
Classifications
CWE-427, T1574.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <10.54

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

MailEnable · MailEnableversion=0 <10.54

Published CVSS scores

8.5VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
T1574.001DLL Search Order Hijacking

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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