---
title: "CVE-2025-12420: Unauthenticated Privilege Escalation… | CubePath"
description: "A vulnerability has been identified in the ServiceNow AI Platform that could enable an unauthenticated user to impersonate another user and perform…"
language: en
source: https://cubepath.com/security/cve/CVE-2025-12420
---

# CVE-2025-12420: Unauthenticated Privilege Escalation… | CubePath

## 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.

Official description from the CVE record, published by SN. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-12420)

## Key data

### CVSS 4.0 Critical 9.3

Score published by SN in the CVE record.

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

| Metric                              | Value   | What it means                                                                                                   |
| ----------------------------------- | ------- | --------------------------------------------------------------------------------------------------------------- |
| Attack vector                       | Network | The vulnerable component can be reached over a network, possibly from the Internet.                             |
| Attack complexity                   | Low     | No measurable action is needed to get around the system's built-in security controls. The attack is repeatable. |
| Attack requirements                 | None    | The attack works without any special deployment or execution conditions.                                        |
| Privileges required                 | None    | No account or privileges are needed.                                                                            |
| User interaction                    | None    | No action from any user is needed.                                                                              |
| Vulnerable system: confidentiality  | High    | Serious or total effect on the secrecy of data.                                                                 |
| Vulnerable system: integrity        | High    | Serious or total effect on the trustworthiness of data.                                                         |
| Vulnerable system: availability     | High    | Serious or total effect on availability.                                                                        |
| Subsequent systems: confidentiality | High    | Serious or total effect on other systems' data secrecy.                                                         |
| Subsequent systems: integrity       | High    | Serious or total effect on other systems' data trustworthiness.                                                 |
| Subsequent systems: availability    | High    | Serious or total effect on other systems' availability.                                                         |

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) .

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.53188 (53.2% probability)

Percentile

99.0%

Scores of

Nov 10, 2026

Model

v2026.06.15

### CISA assessment as of Jan 14, 2026

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Automatable

yes

Technical impact

total

### Weakness (CWE)

CWE catalog version 5.0.

CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license.

- [CWE-250](https://cwe.mitre.org/data/definitions/250.html) Execution with Unnecessary Privileges

## Affected products

Products listed in the CVE record, as the CNA published them.

- ServiceNow Now Assist AI Agents

  - affected: 5.0.26 up to 5.1.17
  - affected: 5.0.26 up to 5.2.18
- ServiceNow Virtual Agent API

  - affected: before 3.15.2
  - affected: before 4.0.4

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [support.servicenow.com/kb?id=kb\_article\_view&sysparm\_articl…](https://support.servicenow.com/kb?id=kb%5Farticle%5Fview&sysparm%5Farticle=KB2587329) vendor-advisory

## Timeline

1. ID reserved Oct 28, 2025
2. Record published Jan 12, 2026
3. Record last updated Feb 26, 2026

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

[Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection)

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:03 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)