CVE-2025-47222

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-11-13 · updated 2026-06-17
Weakness: CWE-284

Description

A class name enumeration was found in Keyfactor SignServer versions prior to 7.3.2. Setting any chosen class name to any of the properties requiring a class path and the provided class is not expected to return different errors if the class exists in deployment or not. This returns information about the classes loaded in the application or not to the clientside.

Affected products

Keyfactor Signserver: before 7.3.1 — fixed in 7.3.1

How to fix

Upgrade to a fixed version: Keyfactor Signserver 7.3.1. Check the vendor advisory for mitigations.

References

https://docs.keyfactor.com/signserver/latest/signserver-7-3-release-notes
https://support.keyfactor.com
https://support.keyfactor.com/hc/en-us/articles/37639174814235-SignServer-CVE-2025-47222-Class-name-enumeration

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