CVE-2025-12420 - CVE House
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Status published Critical CVE-2025-12420

Unauthenticated Privilege Escalation in ServiceNow AI Platform

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Aaron Costello – AppOmni

Affected Vendor

Affected Software

Now Assist AI Agents, Virtual Agent API
Vulnerable Versions:
5.0.26, 0

Timeline

Official Publish: January 12th, 2026
Last Modified: February 26th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)