CVE-2025-12420

{"id": "CVE-2025-12420", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "psirt@servicenow.com", "cvssData": {"Safety": "NEGLIGIBLE", "version": "4.0", "Recovery": "USER", "baseScore": 9.3, "Automatable": "YES", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "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", "exploitMaturity": "PROOF_OF_CONCEPT", "providerUrgency": "AMBER", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "HIGH", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-01-12T22:16:07.470", "references": [{"url": "https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2587329", "tags": ["Vendor Advisory"], "source": "psirt@servicenow.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@servicenow.com", "description": [{"lang": "en", "value": "CWE-250"}]}], "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."}], "lastModified": "2026-01-27T20:25:54.110", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:servicenow:now_assist_ai_agents:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "981D4C38-EC4B-42F1-96D2-83B02403ABD2", "versionEndExcluding": "5.1.18"}, {"criteria": "cpe:2.3:a:servicenow:now_assist_ai_agents:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "160208ED-E032-4B34-BC89-0AC7B2C0808A", "versionEndExcluding": "5.2.19", "versionStartIncluding": "5.2.0"}, {"criteria": "cpe:2.3:a:servicenow:virtual_agent_api:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B619348E-A16D-4A69-9CB6-58A2FFC0BAED", "versionEndExcluding": "3.15.2"}, {"criteria": "cpe:2.3:a:servicenow:virtual_agent_api:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0F8C6775-D097-491A-9246-0C691EB680E3", "versionEndExcluding": "4.0.4", "versionStartIncluding": "4.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@servicenow.com"}