Critical severity · published Jan 12, 2026
CVE-2025-12420
Unauthenticated Privilege Escalation in ServiceNow AI Platform
9.8
CVSS
53.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)53.2% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NA
Now Assist AI Agents · ServiceNow
5.0.26 through 5.1.17; 5.0.26 through 5.2.18 · source: vendor, NVD
VA
Virtual Agent API · ServiceNow
before 3.15.2; before 4.0.4 · source: vendor, NVD