{"id":"CVE-2026-67631","aliases":[],"title":"Microsoft SQL Server Remote Code Execution Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","products":[{"vendor":"Microsoft","name":"Microsoft SQL Server 2017 (CU 31)","platforms":["x64-based Systems"],"versions":[{"version":"14.0.0","status":"affected","lessThan":"14.0.3550.4","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-67631"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2017 (GDR)","platforms":["x64-based Systems"],"versions":[{"version":"14.0.0","status":"affected","lessThan":"14.0.2130.4","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-67631"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2019 (CU 32)","platforms":["x64-based Systems"],"versions":[{"version":"15.0.0.0","status":"affected","lessThan":"15.0.4490.9","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-67631"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2019 (GDR)","platforms":["x64-based Systems"],"versions":[{"version":"15.0.0","status":"affected","lessThan":"15.0.2190.7","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-67631"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2022 (CU 26)","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0.0","status":"affected","lessThan":"16.0.4275.2","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-67631"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2022 (GDR)","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","status":"affected","lessThan":"16.0.1200.5","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-67631"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2025 (CU8)","platforms":["x64-based Systems"],"versions":[{"version":"17.0.0.0","status":"affected","lessThan":"17.0.4085.5","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-67631"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2025 for x64-based Systems (GDR)","platforms":["x64-based Systems"],"versions":[{"version":"17.0.1050.2","status":"affected","lessThan":"17.0.1135.8","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-67631"}],"remediation":[],"description":"Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.","severity":"critical","score":9.8,"published":"2026-09-08T17:10:43.707Z","modified":"2026-10-27T00:26:04.436Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67631"],"sources":[{"name":"CVE","id":"CVE-2026-67631","modified":"2026-10-27T00:26:04.436Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-67631"}],"assessments":[{"source":"microsoft","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","score":9.8}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T17:50:31.025Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}