{"id":"CVE-2026-20803","aliases":["EUVD-2026-2196","GHSA-9429-3r47-rwh9"],"status":"published","title":"Microsoft SQL Server Elevation of Privilege Vulnerability","description":"Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/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":0.01248,"percentile":0.69593,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2026-01-13T17:56:06Z","modified":"2026-07-30T21:16:56Z","products":[{"vendor":"microsoft","product":"microsoft sql server 2022 (gdr)"},{"vendor":"microsoft","product":"microsoft sql server 2022 for x64-based systems (cu 22)"},{"vendor":"microsoft","product":"microsoft sql server 2025 for x64-based systems (gdr)"},{"vendor":"microsoft","product":"sql_server_2022"},{"vendor":"microsoft","product":"sql_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20803","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20803"},{"url":"https://github.com/advisories/GHSA-9429-3r47-rwh9"}],"sources":{"cve":[{"id":"CVE-2026-20803","title":"Microsoft SQL Server Elevation of Privilege Vulnerability","description":"Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-01-13T17:56:06.184Z","modified":"2026-07-30T20:46:21.896Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/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":"2026-11-02T13:35:44.571002Z"}],"euvd":[{"id":"EUVD-2026-2196","description":"Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-01-13T17:56:06Z","modified":"2026-07-30T20:46:21Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:02:27.233735Z"}],"ghsa":[{"id":"GHSA-9429-3r47-rwh9","title":"Missing authentication for critical function in SQL Server allows an authorized attacker to...","description":"Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-01-13T18:31:08Z","modified":"2026-01-13T18:31:14Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T15:05:34.558577Z"}],"nvd":[{"id":"CVE-2026-20803","description":"Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-01-13T18:16:06.63Z","modified":"2026-07-30T21:16:56.5Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:12:03.683495Z"}]}}