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CVE-2025-52374

MEDIUM
4.6
CVSS Score
Published: July 21, 2025 at 12:00 AM UTC
Updated: June 17, 2026 at 09:36 AM UTC
1 product affected across 1 vendorHmailserver

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Severity
MEDIUM4.6
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Product
Source: [email protected]
https://github.com/hmailserver/hmailserver
ExploitThird Party Advisory
Source: [email protected]
https://github.com/mojibake-dev/hMailEnum
ExploitThird Party Advisory
Source: [email protected]
https://github.com/mojibake-dev/mojibake-CVE/blob/main/hMailServer/CVE-2025-52374.md

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.6MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-321

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