{"cve":"CVE-2019-17180","nvd":{"published":"2019-10-04T20:15:11.377","modified":"2026-06-17T02:23:25.450","status":"Modified","description":"Valve Steam Client before 2019-09-12 allows placing or appending partially controlled filesystem content, as demonstrated by file modifications on Windows in the context of NT AUTHORITY\\SYSTEM. This could lead to denial of service, elevation of privilege, or unspecified other impact.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-22"],"references":["https://amonitoring.ru/article/steam_vuln_3/","https://habr.com/ru/company/pm/blog/469507/","https://hackerone.com/reports/583184","https://hackerone.com/reports/682774","https://store.steampowered.com/news/54236/"],"products":["valvesoftware:steam_client"],"source":"nvd","synced_at":"2026-10-19T20:59:10.855360465+00:00"},"epss":{"cve":"CVE-2019-17180","score":0.00717,"percentile":0.53813,"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."]}