CVE-2025-52374
hMailServer Hardcoded Cryptographic Key Decryption Vulnerability
Description
Use of hardcoded cryptographic key in Encryption.cs in hMailServer 5.8.6 and 5.6.9-beta allows attacker to decrypt passwords to other servers from hMailAdmin.exe.config file to access other hMailServer admin consoles with configured connections.
INFO
Published Date :
July 21, 2025, 4:15 p.m.
Last Modified :
Aug. 7, 2025, 6 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update hMailServer to a version that resolves this issue.
- Review and update configurations for securely managed cryptographic keys.
- Remove hardcoded credentials from configuration files.
- Implement secure key management practices.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-52374.
| URL | Resource |
|---|---|
| https://github.com/hmailserver/hmailserver | Product |
| https://github.com/mojibake-dev/hMailEnum | Exploit Third Party Advisory |
| https://github.com/mojibake-dev/mojibake-CVE/blob/main/hMailServer/CVE-2025-52374.md | Exploit Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-52374 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-52374
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-52374 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-52374 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 07, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:hmailserver:hmailserver:5.6.9:beta:*:*:*:*:*:* *cpe:2.3:a:hmailserver:hmailserver:5.8.6:*:*:*:*:*:*:* Added Reference Type MITRE: https://github.com/hmailserver/hmailserver Types: Product Added Reference Type MITRE: https://github.com/mojibake-dev/hMailEnum Types: Exploit, Third Party Advisory Added Reference Type MITRE: https://github.com/mojibake-dev/mojibake-CVE/blob/main/hMailServer/CVE-2025-52374.md Types: Exploit, Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 22, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N Added CWE CWE-321 -
New CVE Received by [email protected]
Jul. 21, 2025
Action Type Old Value New Value Added Description Use of hardcoded cryptographic key in Encryption.cs in hMailServer 5.8.6 and 5.6.9-beta allows attacker to decrypt passwords to other servers from hMailAdmin.exe.config file to access other hMailServer admin consoles with configured connections. Added Reference https://github.com/hmailserver/hmailserver Added Reference https://github.com/mojibake-dev/hMailEnum Added Reference https://github.com/mojibake-dev/mojibake-CVE/blob/main/hMailServer/CVE-2025-52374.md