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CRITICAL

CVE-2025-12420

CVSS v3

9.8

CRITICAL

EPSS Score

53.2 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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 vulnerab

Technical details

Published
2026-01-12
Last Modified
2026-01-27

Frequently asked questions

What is CVE-2025-12420?

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 vulnerab

Is CVE-2025-12420 actively exploited?

Active exploitation of CVE-2025-12420 has not been confirmed. Its EPSS score was 53.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-12420?

CVE-2025-12420 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2025-12420 affecting your environment?

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