Vulnerability-Lookup

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

Vulnerability from cvelistv5 – Published: 2026-01-12 21:29 – Updated: 2026-02-26 15:04

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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-14 04:57 UTC

CWE

CWE-250 - Execution with Unnecessary Privileges

Assigner

SN mitre root

References

1 reference

URL	Tags
https://support.servicenow.com/kb?id=kb_article_v…	vendor-advisory

Impacted products

2 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)
ServiceNow	Virtual Agent API	Affected: 0 , < 3.15.2 (semver) Affected: 0 , < 4.0.4 (semver)

Credits

Aaron Costello – AppOmni

Show details on NVD website

JSON

To clipboard

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EUVD-2026-52875

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-03 10:48

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

JSON

To clipboard

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  "date_reserved": "2026-10-03T10:48:02.664829+00:00",
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}

FKIE_CVE-2025-12420

Vulnerability from fkie_nvd - Published: 2026-01-12 22:16 - Updated: 2026-06-17 08:32

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	psirt@servicenow.com	https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2587329	Vendor Advisory

Impacted products

Vendor	Product	Version
servicenow	now_assist_ai_agents	*
servicenow	now_assist_ai_agents	*
servicenow	virtual_agent_api	*
servicenow	virtual_agent_api	*

JSON

To clipboard

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}

GHSA-MWG5-CWH8-88M5

Vulnerability from github – Published: 2026-01-13 00:30 – Updated: 2026-01-27 21:31

Details

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

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-12420"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-250"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-12T22:16:07Z",
    "severity": "CRITICAL"
  },
  "details": "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.\n\nServiceNow has addressed this vulnerability by deploying a relevant security update to \u00a0hosted 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.",
  "id": "GHSA-mwg5-cwh8-88m5",
  "modified": "2026-01-27T21:31:40Z",
  "published": "2026-01-13T00:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-12420"
    },
    {
      "type": "WEB",
      "url": "https://support.servicenow.com/kb?id=kb_article_view\u0026sysparm_article=KB2587329"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "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/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",
      "type": "CVSS_V4"
    }
  ]
}

WID-SEC-W-2026-0102

Vulnerability from csaf_certbund - Published: 2026-01-13 23:00 - Updated: 2026-01-18 23:00

Summary

ServiceNow AI Platform: Schwachstelle ermöglicht Privilegieneskalation

Severity

Kritisch

Scope

1 vulnerability in this advisory, including CVE-2025-12420.

CVE-2025-12420

Known affected: 4 products

Open the full advisory

Sightings

Author	Source	Type	Date	Other

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

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

EUVD-2026-52875

FKIE_CVE-2025-12420

GHSA-MWG5-CWH8-88M5

WID-SEC-W-2026-0102

Tags

Sightings

Nomenclature

Related by attack behaviour