{"id":"CVE-2019-15315","aliases":["EUVD-2019-6316","GHSA-mqr5-g657-83ch"],"status":"published","title":"Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT AUTHORITY...","description":"Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT AUTHORITY\\SYSTEM) because local users can replace the current versions of SteamService.exe and SteamService.dll with older versions that lack the CVE-2019-14743 patch.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00409,"percentile":0.35464,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-732"],"published":"2019-08-21T19:35:49Z","modified":"2026-06-17T02:20:04Z","products":[{"vendor":"valvesoftware","product":"steam_client"}],"references":[{"url":"https://xiaoyinl.github.io/steam_EoP_bypass.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-15315"},{"url":"https://github.com/advisories/GHSA-mqr5-g657-83ch"}],"sources":{"cve":[{"id":"CVE-2019-15315","description":"Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT AUTHORITY\\SYSTEM) because local users can replace the current versions of SteamService.exe and SteamService.dll with older versions that lack the CVE-2019-14743 patch.","status":"published","published":"2019-08-21T19:35:49Z","modified":"2024-08-05T00:42:03.779Z","updated_at":"2026-11-02T14:20:21.397307Z"}],"euvd":[{"id":"EUVD-2019-6316","description":"Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT AUTHORITY\\SYSTEM) because local users can replace the current versions of SteamService.exe and SteamService.dll with older versions that lack the CVE-2019-14743 patch.","status":"published","published":"2019-08-21T19:35:49Z","modified":"2024-08-05T00:42:03Z","updated_at":"2026-11-03T02:40:37.184704Z"}],"ghsa":[{"id":"GHSA-mqr5-g657-83ch","title":"Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT AUTHORITY...","description":"Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT AUTHORITY\\SYSTEM) because local users can replace the current versions of SteamService.exe and SteamService.dll with older versions that lack the CVE-2019-14743 patch.","status":"published","published":"2022-05-24T16:54:24Z","modified":"2023-01-28T05:07:14Z","updated_at":"2026-11-02T14:44:30.20469Z"}],"nvd":[{"id":"CVE-2019-15315","description":"Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT AUTHORITY\\SYSTEM) because local users can replace the current versions of SteamService.exe and SteamService.dll with older versions that lack the CVE-2019-14743 patch.","status":"published","published":"2019-08-21T20:15:12.853Z","modified":"2026-06-17T02:20:04.703Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:05:23.725587Z"}]}}