CVE-2025-12420 (GCVE-0-2025-12420)

Vulnerability from cvelistv5 – Published: 2026-01-12 21:29 – Updated: 2026-01-14 04:57
VLAI?
Title
Unauthenticated Privilege Escalation in ServiceNow AI Platform
Summary
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.
Severity ?
9.3 (Critical)
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
CWE
  • CWE-250 - Execution with Unnecessary Privileges
Assigner
SN
References
Impacted products
Vendor Product Version
ServiceNow Now Assist AI Agents Affected: 5.0.26 , ≤ 5.1.17 (semver)
Affected: 5.0.26 , ≤ 5.2.18 (semver)
Create a notification for this product.
    ServiceNow Virtual Agent API Affected: 0 , < 3.15.2 (semver)
Affected: 0 , < 4.0.4 (semver)
Create a notification for this product.
Credits
Aaron Costello – AppOmni
Show details on NVD website
To clipboard 

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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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