{"id":"CVE-2026-78456","aliases":["EUVD-2026-73809","GHSA-h57r-w39w-33fc"],"status":"published","title":"SQL Server Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.","severity":{"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/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00913,"percentile":0.60524,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-09-08T17:18:28Z","modified":"2026-11-10T21:37:28Z","products":[{"vendor":"microsoft","product":"microsoft sql server 2022 (cu 26)"},{"vendor":"microsoft","product":"microsoft sql server 2022 (gdr)"},{"vendor":"microsoft","product":"sql_server_2022"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78456","tags":["vendor-advisory","patch","Vendor Advisory","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78456"},{"url":"https://github.com/advisories/GHSA-h57r-w39w-33fc"}],"sources":{"cve":[{"id":"CVE-2026-78456","title":"SQL Server Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:18:28.338Z","modified":"2026-11-10T21:37:28.461Z","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/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T22:48:53.557052Z"}],"euvd":[{"id":"EUVD-2026-73809","description":"Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:18:28Z","modified":"2026-11-10T21:37:28Z","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/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T23:24:19.311812Z"}],"ghsa":[{"id":"GHSA-h57r-w39w-33fc","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":"2026-09-08T18:33:25Z","modified":"2026-09-08T18:34:12Z","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":"2026-11-02T15:11:34.690977Z"}],"nvd":[{"id":"CVE-2026-78456","description":"Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:20:44.28Z","modified":"2026-09-15T14:55:45.91Z","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","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:12:45.264578Z"}]}}