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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-12420 Detail

Description

A vulnerability has been identified in the ServiceNow AI Platform that could enable an unauthenticated user to impersonate another user and perform the operations that the impersonated user is entitled to perform. ServiceNow has addressed this vulnerability by deploying a relevant security update to  hosted instances in October 2025. Security updates have also been provided to ServiceNow self-hosted customers, partners, and hosted customers with unique configurations. Additionally, the vulnerability is addressed in the listed Store App versions. We recommend that customers promptly apply an appropriate security update or upgrade if they have not already done so.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  ServiceNow
CVSS-BT 9.3 CRITICAL
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:H/U:Amber

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2587329 ServiceNow

Weakness Enumeration

CWE-ID CWE Name Source
CWE-250 Execution with Unnecessary Privileges ServiceNow  

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-12420
NVD Published Date:
01/12/2026
NVD Last Modified:
01/13/2026
Source:
ServiceNow