1. Home
  2. Vulnerabilities
  3. CVE-2025-47222
6.5
MEDIUM CVSS 3.1
CVE-2025-47222
Keyfactor SignServer Authentication Bypass
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.

INFO

Published Date :

Nov. 13, 2025, 9:15 p.m.

Last Modified :

Dec. 17, 2025, 8:15 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-47222 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Keyfactor signserver
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update to a version that addresses the access control vulnerability.
  • Update to Keyfactor SignServer version 7.3.1 or later.
  • Review and enforce access control policies.
  • Apply vendor-provided security patches.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-47222.

URL Resource
https://docs.keyfactor.com/signserver/latest/signserver-7-3-release-notes Release Notes
https://support.keyfactor.com Product
https://support.keyfactor.com/hc/en-us/articles/37639174814235-SignServer-CVE-2025-47222-Class-name-enumeration
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-47222 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-47222 weaknesses.

CAPEC-19: Embedding Scripts within Scripts Embedding Scripts within Scripts CAPEC-441: Malicious Logic Insertion Malicious Logic Insertion CAPEC-478: Modification of Windows Service Configuration Modification of Windows Service Configuration CAPEC-479: Malicious Root Certificate Malicious Root Certificate CAPEC-502: Intent Spoof Intent Spoof CAPEC-503: WebView Exposure WebView Exposure CAPEC-536: Data Injected During Configuration Data Injected During Configuration CAPEC-546: Incomplete Data Deletion in a Multi-Tenant Environment Incomplete Data Deletion in a Multi-Tenant Environment CAPEC-550: Install New Service Install New Service CAPEC-551: Modify Existing Service Modify Existing Service CAPEC-552: Install Rootkit Install Rootkit CAPEC-556: Replace File Extension Handlers Replace File Extension Handlers CAPEC-558: Replace Trusted Executable Replace Trusted Executable CAPEC-562: Modify Shared File Modify Shared File CAPEC-563: Add Malicious File to Shared Webroot Add Malicious File to Shared Webroot CAPEC-564: Run Software at Logon Run Software at Logon CAPEC-578: Disable Security Software Disable Security Software

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-47222 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-47222 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    Dec. 17, 2025

    Action Type Old Value New Value
    Changed Description A class name enumeration issue was found in Keyfactor SignServer versions prior to 7.3.2. 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.
    Added Reference https://support.keyfactor.com/hc/en-us/articles/37639174814235-SignServer-CVE-2025-47222-Class-name-enumeration
  • CVE Modified by [email protected]

    Dec. 09, 2025

    Action Type Old Value New Value
    Changed Description Keyfactor SignServer before 7.3.1 has Incorrect Access Control, issue 3 of 3. A class name enumeration issue was found in Keyfactor SignServer versions prior to 7.3.2.
  • Initial Analysis by [email protected]

    Nov. 24, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:keyfactor:signserver:*:*:*:*:*:*:*:* versions up to (excluding) 7.3.1
    Added Reference Type MITRE: https://docs.keyfactor.com/signserver/latest/signserver-7-3-release-notes Types: Release Notes
    Added Reference Type MITRE: https://support.keyfactor.com Types: Product
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Nov. 14, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
    Added CWE CWE-284
  • New CVE Received by [email protected]

    Nov. 13, 2025

    Action Type Old Value New Value
    Added Description Keyfactor SignServer before 7.3.1 has Incorrect Access Control, issue 3 of 3.
    Added Reference https://docs.keyfactor.com/signserver/latest/signserver-7-3-release-notes
    Added Reference https://support.keyfactor.com
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact