{"id":"CVE-2025-12420","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-12420","generatedAt":"2026-10-31T06:57:55.265Z","title":"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.","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.\n\nServiceNow 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.","published":"2026-01-12T22:16:07.000Z","lastModified":"2026-06-17T08:32:21.000Z","status":"Analyzed","sourceIdentifier":"psirt@servicenow.com","cvss":{"version":"4.0","score":9.3,"severity":"CRITICAL","vector":"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/M"},"cwe":["CWE-250"],"affected":["servicenow/now assist ai agents","servicenow/virtual agent api"],"epss":{"score":0.53188,"percentile":0.9898,"date":"2026-10-30","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 53.2%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2587329","tags":["Vendor Advisory"],"source":"psirt@servicenow.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-12420","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}