{"id":"CVE-2026-66816","title":"Insufficient logging in SQL Server allows an authorized attacker to bypass a security feature over a network.","summary":"Insufficient logging in SQL Server allows an authorized attacker to bypass a security feature over a network.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-778"],"vendor":"microsoft","product":"sql_server_2022","affected":["sql_server_2022 < 16.0.1200.5","sql_server_2022 >= 16.0.4003.1, < 16.0.4275.2","sql_server_2025 < 17.0.1135.8","sql_server_2025 >= 17.0.4006.2, < 17.0.4085.5"],"patched":["sql_server_2022 16.0.4275.2","sql_server_2025 17.0.4085.5"],"published":"2026-09-08","updated":"2026-09-16","sourceUpdated":"2026-09-16T11:57:48.333","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-66816","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66816","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.00715,"epssPercentile":0.51856,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-08T18:24:17.455538Z"},"ingestedAt":"2026-09-08T19:08:49.604Z","slug":"CVE-2026-66816","body":"## Overview\n\nInsufficient logging in SQL Server allows an authorized attacker to bypass a security feature over a network.\n\n## Affected\n\n- `sql_server_2022 < 16.0.1200.5`\n- `sql_server_2022 >= 16.0.4003.1, < 16.0.4275.2`\n- `sql_server_2025 < 17.0.1135.8`\n- `sql_server_2025 >= 17.0.4006.2, < 17.0.4085.5`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `sql_server_2022 16.0.4275.2`\n- `sql_server_2025 17.0.4085.5`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}