Use of Hard-coded Cryptographic Key Affecting hmailserver/hmailserver package, versions [5.6.8,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UNMANAGED-HMAILSERVERHMAILSERVER-12747961
- published17 Sept 2025
- disclosed21 Jul 2025
- creditEli Samara
Introduced: 21 Jul 2025
CVE-2025-52374 (opens in a new tab)How to fix?
There is no fixed version for hmailserver/hmailserver.
Overview
Affected versions of this package are vulnerable to Use of Hard-coded Cryptographic Key via the use of hardcoded cryptographic key in Encryption.cs. A local attacker can obtain decrypted credentials to other servers from hMailAdmin.exe.config file and access other hMailServer admin consoles with configured connections.