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CVE-2025-34396— MailEnable < 10.54 DLL Hijacking via Unsafe Loading of MEAINFY.DLL

Quick assessment

Affected
MailEnable MailEnable
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MailEnable是澳大利亚MailEnable公司的一个基于 Windows 的商业电子邮件服务器。 MailEnable 10.54之前版本存在代码问题漏洞，该漏洞源于DLL加载机制不安全，可能导致本地任意代码执行。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1055.011 · Extra Window Memory Injection

Affected Version Matrix 1

VendorProduct Version RangeStatus
MailEnable MailEnable < 10.54 affected
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I. Basic Information for CVE-2025-34396

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
MailEnable < 10.54 DLL Hijacking via Unsafe Loading of MEAINFY.DLL
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
对搜索路径元素未加控制
Source: CVE Program / CVE List V5
Vulnerability Title
MailEnable 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MailEnable是澳大利亚MailEnable公司的一个基于 Windows 的商业电子邮件服务器。 MailEnable 10.54之前版本存在代码问题漏洞，该漏洞源于DLL加载机制不安全，可能导致本地任意代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MailEnable MailEnable 0 ~ 10.54 -

II. Public POCs for CVE-2025-34396

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III. Intelligence Information for CVE-2025-34396

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Vendor Pages for CVE-2025-34396 (1)

Other References for CVE-2025-34396 (1)

Same Patch Batch · MailEnable · 2025-12-09 · 14 CVEs total

CVE-2025-34400 MailEnable < 10.54 Reflected XSS in AddressesTo Parameter of AddressBook.aspx
CVE-2025-34404 MailEnable < 10.54 Reflected XSS in InstanceScope Parameter of CAL/compose.aspx
CVE-2025-34402 MailEnable < 10.54 Reflected XSS in FieldCc Parameter of AddressBook.aspx
CVE-2025-34397 MailEnable < 10.54 Reflected XSS in Message Parameter of Mobile/Compose.aspx
CVE-2025-34403 MailEnable < 10.54 Reflected XSS in FieldTo Parameter of AddressBook.aspx
CVE-2025-34409 MailEnable < 10.54 Reflected XSS in Failed Parameter of MAI/AddRecipientsResult.aspx
CVE-2025-34398 MailEnable < 10.54 Reflected XSS in AddressesBcc Parameter of AddressBook.aspx
CVE-2025-34407 MailEnable < 10.54 Reflected XSS in theme Parameter of Statistics.aspx
CVE-2025-34406 MailEnable < 10.54 Reflected XSS in Id Parameter of Mobile/ContactDetails.aspx
CVE-2025-34408 MailEnable < 10.54 Reflected XSS in Added Parameter of MAI/AddRecipientsResult.aspx
CVE-2025-34399 MailEnable < 10.54 Reflected XSS in AddressesCc Parameter of AddressBook.aspx
CVE-2025-34401 MailEnable < 10.54 Reflected XSS in FieldBcc Parameter of AddressBook.aspx
CVE-2025-34425 MailEnable < 10.54 Reflected XSS in WindowContext Parameter of MAI/compose.aspx

IV. Related Vulnerabilities

Same product: MailEnable
Same vendor: MailEnable
Same weakness: CWE-427

V. Comments for CVE-2025-34396

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