{"id":"CVE-2026-69374","aliases":["EUVD-2026-73481","GHSA-c3qm-624h-cp2j"],"status":"published","title":"Windows SMB Server Denial of Service Vulnerability","description":"Allocation of resources without limits or throttling in Windows SMB 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":"2026-11-11","score":0.01138,"percentile":0.66994,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-770"],"published":"2026-09-08T17:15:24Z","modified":"2026-11-10T21:34:23Z","products":[{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 23h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69374","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69374"},{"url":"https://github.com/advisories/GHSA-c3qm-624h-cp2j"}],"sources":{"cve":[{"id":"CVE-2026-69374","title":"Windows SMB Server Denial of Service Vulnerability","description":"Allocation of resources without limits or throttling in Windows SMB Server allows an authorized attacker to deny service over a network.","status":"published","published":"2026-09-08T17:15:24.388Z","modified":"2026-11-10T21:34:23.363Z","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-770"],"updated_at":"2026-11-10T22:48:52.144232Z"}],"euvd":[{"id":"EUVD-2026-73481","description":"Allocation of resources without limits or throttling in Windows SMB Server allows an authorized attacker to deny service over a network.","status":"published","published":"2026-09-08T17:15:24Z","modified":"2026-11-10T21:34:23Z","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":"2026-11-10T22:23:48.645955Z"}],"ghsa":[{"id":"GHSA-c3qm-624h-cp2j","title":"Allocation of resources without limits or throttling in Windows SMB Server allows an authorized...","description":"Allocation of resources without limits or throttling in Windows SMB Server allows an authorized attacker to deny service over a network.","status":"published","published":"2026-09-08T18:32:27Z","modified":"2026-09-08T18:32:36Z","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-770"],"updated_at":"2026-11-02T15:11:30.562219Z"}],"nvd":[{"id":"CVE-2026-69374","description":"Allocation of resources without limits or throttling in Windows SMB Server allows an authorized attacker to deny service over a network.","status":"published","published":"2026-09-08T18:18:57.903Z","modified":"2026-09-17T15:43:46.097Z","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-770"],"updated_at":"2026-11-02T14:12:44.840742Z"}]}}