CVE-2025-12420
Detail
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.
Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:H/U:Amber
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
Base
Score:
NVD assessment
not yet provided.
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Weakness Enumeration
| CWE-ID |
CWE Name |
Source |
|
CWE-250
|
Execution with Unnecessary Privileges |
ServiceNow
|
Change History
7 change records found show changes
CVE Modified by CISA-ADP
6/17/2026 4:32:20 AM
| Action |
Type |
Old Value |
New Value |
| Added |
SSVC |
{"timestamp":"2026-01-14T04:57:14.352249Z","id":"CVE-2025-12420","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}
|
CVE Modified by ServiceNow
6/17/2026 4:32:20 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Affected |
[{"vendor":"ServiceNow","product":"Now Assist AI Agents","defaultStatus":"unaffected","versions":[{"version":"5.0.26","lessThanOrEqual":"5.1.17","versionType":"semver","status":"affected"},{"version":"5.0.26","lessThanOrEqual":"5.2.18","versionType":"semver","status":"affected"}]},{"vendor":"ServiceNow","product":"Virtual Agent API","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"3.15.2","versionType":"semver","status":"affected"},{"version":"0","lessThan":"4.0.4","versionType":"semver","status":"affected"}]}]
|
Initial Analysis by NIST
1/27/2026 3:25:54 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CVSS V3.1 |
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
| Added |
CPE Configuration |
OR
*cpe:2.3:a:servicenow:now_assist_ai_agents:*:*:*:*:*:*:*:* versions up to (excluding) 5.1.18
*cpe:2.3:a:servicenow:now_assist_ai_agents:*:*:*:*:*:*:*:* versions from (including) 5.2.0 up to (excluding) 5.2.19
*cpe:2.3:a:servicenow:virtual_agent_api:*:*:*:*:*:*:*:* versions up to (excluding) 3.15.2
*cpe:2.3:a:servicenow:virtual_agent_api:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (excluding) 4.0.4
|
| Added |
Reference Type |
ServiceNow: https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2587329 Types: Vendor Advisory
|
CVE Modified by CISA-ADP
1/13/2026 10:15:57 AM
| Action |
Type |
Old Value |
New Value |
| Removed |
CWE |
CWE-200
|
CVE Modified by ServiceNow
1/12/2026 10:16:00 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CWE |
CWE-250
|
CVE Modified by CISA-ADP
1/12/2026 5:16:07 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CWE |
CWE-200
|
New CVE Received from ServiceNow
1/12/2026 5:16:07 PM
| Action |
Type |
Old Value |
New Value |
| Added |
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.
|
| Added |
CVSS V4.0 |
AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:C/RE:H/U:Amber
|
| Added |
Reference |
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2587329
|
Quick Info
CVE Dictionary Entry: CVE-2025-12420 NVD
Published Date: 01/12/2026 NVD
Last Modified: 06/17/2026
Source: ServiceNow
|
