CVE-2025-52374 Hardcoded credentials in n/a

Medium 4.6 Published Updated

Attackers can decrypt stored passwords using a hardcoded key to access other hMailServer admin consoles.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-52374?

CVE-2025-52374 is a medium-severity vulnerability in n/a, published on 21 Jul 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-321

Which versions are affected by CVE-2025-52374?

It affects 1 product.

Products include Hmailserver Hmailserver.

How do I fix CVE-2025-52374?

No fix has been published for CVE-2025-52374 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-52374 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-52374 exists.

Sources

Also known as GHSA-q363-f26m-jj5j.

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