{"cve":"CVE-2019-0657","nvd":{"published":"2019-03-05T23:29:02.037","modified":"2026-06-17T02:08:38.263","status":"Modified","description":"A vulnerability exists in certain .Net Framework API's and Visual Studio in the way they parse URL's, aka '.NET Framework and Visual Studio Spoofing Vulnerability'.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","score":5.9},"cwes":["CWE-20"],"references":["http://www.securityfocus.com/bid/106890","https://access.redhat.com/errata/RHSA-2019:0349","https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0657","http://www.securityfocus.com/bid/106890","https://access.redhat.com/errata/RHSA-2019:0349"],"products":["microsoft:.net_core","microsoft:.net_framework","microsoft:powershell_core","microsoft:visual_studio_2017"],"source":"nvd","synced_at":"2026-10-19T20:55:22.313337056+00:00"},"epss":{"cve":"CVE-2019-0657","score":0.04518,"percentile":0.91529,"date":"2026-10-31"},"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."]}