CVE-2025-12420
CRITICALCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2Description
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.
Analysis
ServiceNow AI Platform has a user impersonation vulnerability allowing unauthenticated attackers to impersonate any user and perform their authorized actions. ServiceNow has deployed patches to hosted instances and self-hosted updates are available.
Technical Context
Improper authentication in AI Platform APIs (CWE-250) allows an unauthenticated attacker to impersonate any platform user. Given ServiceNow's role in enterprise IT operations, this can mean access to incident data, change management, asset inventories, and HR records.
Affected Products
ServiceNow AI Platform (patched in October 2025 for hosted instances)
Remediation
Verify your ServiceNow instance has the security update applied. Self-hosted customers should update immediately.
Priority Score
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External POC / Exploit Code
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