{"id":"CVE-2026-67641","aliases":["EUVD-2026-73388","GHSA-m563-v4rr-6f2j"],"status":"published","title":"Microsoft SQL Server Denial of Service Vulnerability","description":"Integer overflow or wraparound in SQL Server allows an authorized attacker to deny service over a network.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01138,"percentile":0.66806,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2026-09-08T17:14:34Z","modified":"2026-10-31T16:13:15Z","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-2026-67641","tags":["vendor-advisory","patch","Vendor Advisory","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67641"},{"url":"https://github.com/advisories/GHSA-m563-v4rr-6f2j"}],"sources":{"cve":[{"id":"CVE-2026-67641","title":"Microsoft SQL Server Denial of Service Vulnerability","description":"Integer overflow or wraparound in SQL Server allows an authorized attacker to deny service over a network.","status":"published","published":"2026-09-08T17:14:34.174Z","modified":"2026-10-31T16:13:15.159Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:20:06.562031Z"}],"euvd":[{"id":"EUVD-2026-73388","description":"Integer overflow or wraparound in SQL Server allows an authorized attacker to deny service over a network.","status":"published","published":"2026-09-08T17:14:34Z","modified":"2026-10-31T16:13:15Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T16:58:58.699155Z"}],"ghsa":[{"id":"GHSA-m563-v4rr-6f2j","title":"Integer overflow or wraparound in SQL Server allows an authorized attacker to deny service over a...","description":"Integer overflow or wraparound in SQL Server allows an authorized attacker to deny service over a network.","status":"published","published":"2026-09-08T18:32:11Z","modified":"2026-09-08T18:32:16Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T15:11:29.92306Z"}],"nvd":[{"id":"CVE-2026-67641","description":"Integer overflow or wraparound in SQL Server allows an authorized attacker to deny service over a network.","status":"published","published":"2026-09-08T18:18:24.28Z","modified":"2026-09-15T19:33:45.38Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:12:44.436435Z"}]}}