{"id":"CVE-2026-94520","aliases":[],"title":"Microsoft SQL Server Denial of Service Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","products":[{"vendor":"Microsoft","name":"Microsoft SQL Server 2017 (GDR)","platforms":["x64-based Systems"],"versions":[{"version":"14.0.0","status":"affected","lessThan":"14.0.2140.2","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-94520"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2017 for x64-based Systems (CU31)","platforms":["x64-based Systems"],"versions":[{"version":"14.0.3006.16","status":"affected","lessThan":"14.0.3560.2","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-94520"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2019 (GDR)","platforms":["x64-based Systems"],"versions":[{"version":"15.0.0","status":"affected","lessThan":"15.0.2200.2","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-94520"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2019 for x64-based Systems (CU32)","platforms":["x64-based Systems"],"versions":[{"version":"15.0.4003.23","status":"affected","lessThan":"15.0.4500.2","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-94520"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2022 (GDR)","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","status":"affected","lessThan":"16.0.1210.3","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-94520"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2022 for x64-based Systems (CU27)","platforms":["x64-based Systems"],"versions":[{"version":"16.0.4003.1","status":"affected","lessThan":"16.0.4305.5","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-94520"},{"vendor":"Microsoft","name":"Microsoft SQL Server 2025 for x64-based Systems (CU9)","platforms":["x64-based Systems"],"versions":[{"version":"17.0.4006.2","status":"affected","lessThan":"17.0.5015.4","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-94520"},{"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":"17.0.1145.4","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-94520"}],"remediation":[],"description":"Use of externally-controlled format string in SQL Server allows an authorized attacker to deny service over a network.","severity":"medium","score":4.9,"published":"2026-10-13T20:37:27.748Z","modified":"2026-10-28T18:19:55.396Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-94520"],"sources":[{"name":"CVE","id":"CVE-2026-94520","modified":"2026-10-28T18:19:55.396Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-94520"}],"assessments":[{"source":"microsoft","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","score":4.9}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T21:35:36.012Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}