CVE-2025-52374

Summary

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/mojibake-dev/hMailEnum
• https://github.com/hmailserver/hmailserver
• https://github.com/mojibake-dev/mojibake-CVE/blob/main/hMailServer/CVE-2025-52374.md

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