{"id":"CVE-2025-48799","aliases":["EUVD-2025-20603","GHSA-hc7x-m44m-xhxq"],"status":"published","title":"Windows Update Service Elevation of Privilege Vulnerability","description":"Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0133,"percentile":0.71286,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-59"],"published":"2025-07-08T16:57:36Z","modified":"2026-06-17T09:30:19Z","exploits":[{"source":"pocgithub","id":"Wh04m1001/CVE-2025-48799","title":"Wh04m1001/CVE-2025-48799","date":"2025-07-08","url":"https://github.com/Wh04m1001/CVE-2025-48799"},{"source":"pocgithub","id":"gmh5225/CVE-2025-48799-","title":"gmh5225/CVE-2025-48799-","date":"2025-09-02","url":"https://github.com/gmh5225/CVE-2025-48799-"},{"source":"pocgithub","id":"painoob/CVE-2025-48799","title":"painoob/CVE-2025-48799","date":"2025-08-05","url":"https://github.com/painoob/CVE-2025-48799"}],"products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 22h3"},{"vendor":"microsoft","product":"windows 11 version 23h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_22h2"},{"vendor":"microsoft","product":"windows_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48799","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://www.vicarius.io/vsociety/posts/cve-2025-48799-mitigation-script-elevation-of-privilege-vulnerability-in-windows-update-service","tags":["Exploit","Mitigation","Third Party Advisory"]},{"url":"https://www.vicarius.io/vsociety/posts/cve-2025-48799-detection-script-elevation-of-privilege-vulnerability-in-windows-update-service","tags":["Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-48799"},{"url":"https://github.com/advisories/GHSA-hc7x-m44m-xhxq"}],"sources":{"cve":[{"id":"CVE-2025-48799","title":"Windows Update Service Elevation of Privilege Vulnerability","description":"Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally.","status":"published","published":"2025-07-08T16:57:36.12Z","modified":"2026-02-13T19:07:11.379Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:32:41.089134Z"}],"euvd":[{"id":"EUVD-2025-20603","description":"Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges 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attacker to elevate privileges locally.","status":"published","published":"2025-07-08T17:15:42.72Z","modified":"2026-06-17T09:30:19.03Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:11:17.727956Z"}]}}