CVE-2025-12420
9.8 · CRITICALOverview
CVE-2025-12420 is a critical-severity vulnerability affecting servicenow now_assist_ai_agents. It was published on January 12, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from servicenow. Update now_assist_ai_agents to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| servicenow | now_assist_ai_agents | >= 0, < 5.1.18 | Affected |
| servicenow | virtual_agent_api | >= 0, < 3.15.2 | Affected |
Frequently Asked Questions
What is CVE-2025-12420?
CVE-2025-12420 is a critical-severity vulnerability affecting servicenow now_assist_ai_agents. It was published on January 12, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2025-12420?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-12420?
Check the references section for vendor advisories and patches from servicenow. Update now_assist_ai_agents to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-12420?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-12420 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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