{"cve":"CVE-2025-21399","nvd":{"published":"2025-01-17T20:15:46.117","modified":"2026-06-17T08:43:16.680","status":"Analyzed","description":"Microsoft Edge (Chromium-based) Update Elevation of Privilege Vulnerability","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":7.4},"cwes":["CWE-426"],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21399","https://www.vicarius.io/vsociety/posts/elevation-of-privilege-vulnerability-in-microsoft-edge-chromium-based-detection-script","https://www.vicarius.io/vsociety/posts/elevation-of-privilege-vulnerability-in-microsoft-edge-chromium-based-mitigation-script"],"products":["microsoft:edge_update"],"source":"nvd","synced_at":"2026-10-19T21:58:20.756570362+00:00"},"epss":{"cve":"CVE-2025-21399","score":0.00684,"percentile":0.52583,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}