MailEnable < 10.54 DLL Hijacking via Unsafe Loading of MEAISP.DLL
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-427.
Summary
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 MEAISP.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 MEAISP.DLL, which is then loaded on execution, resulting in attacker-controlled code running with the privileges of the process.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MailEnable | MailEnable | before 10.54 | 10.54 | Patch available | CNA |
- MailEnable VendorMailEnable Affected before 10.54 Fixed in 10.54 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mailenable:mailenable:*:*:*:*:standard:*:*:* | before 10.54 | Vulnerable | MailEnable |
- cpe:2.3:a:mailenable:mailenable:*:*:*:*:standard:*:*:* Versions before 10.54 Vulnerable ·MailEnable
Remediation
- Fix · CNA MailEnable (MailEnable) Fixed in 10.54
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
MailEnable 10.54
11 records Highest priority Priority LOW 11 LOW
Other records, highest priority first
- TI-2025-24497 MailEnable < 10.54 DLL Hijacking via Unsafe Loading of MEAIDP.DLLPriority LOW 38
- TI-2025-24496 MailEnable < 10.54 DLL Hijacking via Unsafe Loading of MEAIAU.DLLPriority LOW 38
- TI-2025-24495 MailEnable < 10.54 DLL Hijacking via Unsafe Loading of MEAIPC.DLLPriority LOW 38
Timeline
- 2026-10-02 Threatist record created from CVE-2025-34421
- 2026-10-03 Alias added: GHSA-g4vc-m5pm-qwxv
References
More Mailenable vulnerabilities
- TI-2025-28598 Cross Site Scripting (XSS) vulnerability in MailEnable before v10 allows a remote… CVSS 3.1CRITICAL 9.8
- TI-2026-25313 MailEnable < 10.55 Reflected XSS via ManageShares.aspx SelectedIndex Parameter CVSS 4.0MEDIUM 5.1
- TI-2026-25315 MailEnable < 10.55 Reflected XSS via FreeBusy.aspx StartDate Parameter CVSS 4.0MEDIUM 5.1
- TI-2026-25314 MailEnable < 10.55 Reflected XSS via FreeBusy.aspx StartDate Parameter CVSS 4.0MEDIUM 5.1
- TI-2015-07656 MailEnable before 8.60 allows Privilege Escalation because admin accounts could be… CVSS 3.0CRITICAL 9.8
- TI-2015-07658 MailEnable before 8.60 allows XXE via an XML document in the request.aspx Options parameter. CVSS 3.1CRITICAL 10.0
Sources
- CVE-2025-34421 · CVE Program
- CVE-2025-34421 · NVD
- FIRST EPSS
- GHSA-g4vc-m5pm-qwxv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences