CVE-2025-52374

4.6 mediumEPSS 0.2%

Medium (4.6) in hmailserver hmailserver. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.6 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)
CWE: CWE-321
Published: 2025-07-21
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

hmailserver:hmailserver

References

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

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