FKIE_CVE-2025-12420

Vulnerability from fkie_nvd - Published: 2026-01-12 22:16 - Updated: 2026-01-27 20:25
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
References
psirt@servicenow.comhttps://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2587329Vendor Advisory
Impacted products
Vendor Product Version
servicenow now_assist_ai_agents *
servicenow now_assist_ai_agents *
servicenow virtual_agent_api *
servicenow virtual_agent_api *
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{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:servicenow:now_assist_ai_agents:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "981D4C38-EC4B-42F1-96D2-83B02403ABD2",
              "versionEndExcluding": "5.1.18",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:servicenow:now_assist_ai_agents:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "160208ED-E032-4B34-BC89-0AC7B2C0808A",
              "versionEndExcluding": "5.2.19",
              "versionStartIncluding": "5.2.0",
              "vulnerable": true
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            {
              "criteria": "cpe:2.3:a:servicenow:virtual_agent_api:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B619348E-A16D-4A69-9CB6-58A2FFC0BAED",
              "versionEndExcluding": "3.15.2",
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              "criteria": "cpe:2.3:a:servicenow:virtual_agent_api:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0F8C6775-D097-491A-9246-0C691EB680E3",
              "versionEndExcluding": "4.0.4",
              "versionStartIncluding": "4.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Se ha identificado una vulnerabilidad en la Plataforma de IA de ServiceNow que podr\u00eda permitir a un usuario no autenticado suplantar a otro usuario y realizar las operaciones a las que el usuario suplantado tiene derecho a realizar.\n\nServiceNow ha abordado esta vulnerabilidad mediante el despliegue de una actualizaci\u00f3n de seguridad relevante en las instancias alojadas en octubre de 2025. Tambi\u00e9n se han proporcionado actualizaciones de seguridad a los clientes autoalojados de ServiceNow, socios y clientes alojados con configuraciones \u00fanicas. Adem\u00e1s, la vulnerabilidad se aborda en las versiones de la aplicaci\u00f3n de la tienda enumeradas. Recomendamos que los clientes apliquen r\u00e1pidamente una actualizaci\u00f3n de seguridad o una actualizaci\u00f3n de versi\u00f3n apropiada si a\u00fan no lo han hecho."
    }
  ],
  "id": "CVE-2025-12420",
  "lastModified": "2026-01-27T20:25:54.110",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "YES",
          "Recovery": "USER",
          "Safety": "NEGLIGIBLE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "AMBER",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "NONE",
          "valueDensity": "CONCENTRATED",
          "vectorString": "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",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "HIGH"
        },
        "source": "psirt@servicenow.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-01-12T22:16:07.470",
  "references": [
    {
      "source": "psirt@servicenow.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://support.servicenow.com/kb?id=kb_article_view\u0026sysparm_article=KB2587329"
    }
  ],
  "sourceIdentifier": "psirt@servicenow.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-250"
        }
      ],
      "source": "psirt@servicenow.com",
      "type": "Secondary"
    }
  ]
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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