{"id":"CVE-2026-50444","aliases":["EUVD-2026-44074","GHSA-rvgx-9f8h-xpr7"],"status":"published","title":"Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability","description":"Missing authentication for critical function in Windows Server Update Service allows an authorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/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":0.00778,"percentile":0.56183,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2026-07-14T17:07:38Z","modified":"2026-11-10T22:38:09Z","products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows server 2012"},{"vendor":"microsoft","product":"windows server 2012 (server core installation)"},{"vendor":"microsoft","product":"windows server 2012 r2"},{"vendor":"microsoft","product":"windows server 2012 r2 (server core installation)"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server 2022"},{"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_server_2012"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50444","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50444"},{"url":"https://github.com/advisories/GHSA-rvgx-9f8h-xpr7"}],"sources":{"cve":[{"id":"CVE-2026-50444","title":"Windows Server Update Service (WSUS) Elevation of Privilege Vulnerability","description":"Missing authentication for critical function in Windows Server Update Service allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-07-14T17:07:38.548Z","modified":"2026-11-10T22:38:09.153Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/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-306"],"updated_at":"2026-11-10T23:49:29.024872Z"}],"euvd":[{"id":"EUVD-2026-44074","description":"Missing authentication for critical function in Windows Server Update Service allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-07-14T17:07:38Z","modified":"2026-11-10T22:38:09Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-11T00:24:47.982419Z"}],"ghsa":[{"id":"GHSA-rvgx-9f8h-xpr7","title":"Missing authentication for critical function in Windows Server Update Service allows an...","description":"Missing authentication for critical function in Windows Server Update Service allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-07-14T18:32:24Z","modified":"2026-07-14T18:32:24Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T15:09:29.53235Z"}],"nvd":[{"id":"CVE-2026-50444","description":"Missing authentication for critical function in Windows Server Update Service allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-07-14T18:17:48.737Z","modified":"2026-07-21T15:23:36.4Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:12:29.489525Z"}]}}