{"id":"CVE-2026-67643","aliases":["EUVD-2026-73317","GHSA-r6qg-cj8h-f89v"],"status":"published","title":"Microsoft SQL Server Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":9.8,"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00974,"percentile":0.62503,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-09-08T17:13:49Z","modified":"2026-11-10T21:32:37Z","products":[{"vendor":"microsoft","product":"microsoft sql server 2022 (cu 26)"},{"vendor":"microsoft","product":"microsoft sql server 2022 (gdr)"},{"vendor":"microsoft","product":"microsoft sql server 2025 (cu8)"},{"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-2026-67643","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67643"},{"url":"https://github.com/advisories/GHSA-r6qg-cj8h-f89v"}],"sources":{"cve":[{"id":"CVE-2026-67643","title":"Microsoft SQL Server Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:13:49.078Z","modified":"2026-11-10T21:32:37.945Z","cvss":[{"version":"3.1","score":9.8,"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","level":"critical","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T22:48:52.144232Z"}],"euvd":[{"id":"EUVD-2026-73317","description":"Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:13:49Z","modified":"2026-11-10T21:32:37Z","cvss":[{"version":"3.1","score":9.8,"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","level":"critical"}],"updated_at":"2026-11-10T22:23:50.994558Z"}],"ghsa":[{"id":"GHSA-r6qg-cj8h-f89v","title":"Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a...","description":"Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:32:11Z","modified":"2026-09-08T18:32:19Z","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-122"],"updated_at":"2026-11-02T15:11:29.92306Z"}],"nvd":[{"id":"CVE-2026-67643","description":"Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:18:24.53Z","modified":"2026-09-17T20:17:00.937Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:12:44.436435Z"}]}}