{"id":"CVE-2026-70575","aliases":["EUVD-2026-73652","GHSA-7rwg-4366-4vj8"],"status":"published","title":"Windows Schannel Denial of Service Vulnerability","description":"Null pointer dereference in Windows Schannel allows an authorized attacker to deny service over a network.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/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":0.00954,"percentile":0.6181,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2026-09-08T17:16:57Z","modified":"2026-11-10T21:36:01Z","products":[{"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_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-2026-70575","tags":["vendor-advisory","patch","Vendor Advisory","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70575"},{"url":"https://github.com/advisories/GHSA-7rwg-4366-4vj8"}],"sources":{"cve":[{"id":"CVE-2026-70575","title":"Windows Schannel Denial of Service Vulnerability","description":"Null pointer dereference in Windows Schannel allows an authorized attacker to deny service over a network.","status":"published","published":"2026-09-08T17:16:57.903Z","modified":"2026-11-10T21:36:01.147Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-10T22:48:53.557052Z"}],"euvd":[{"id":"EUVD-2026-73652","description":"Null pointer dereference in Windows Schannel allows an authorized attacker to deny service over a network.","status":"published","published":"2026-09-08T17:16:57Z","modified":"2026-11-10T21:36:01Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-10T22:23:47.576985Z"}],"ghsa":[{"id":"GHSA-7rwg-4366-4vj8","title":"Null pointer dereference in Windows Schannel allows an authorized attacker to deny service over a...","description":"Null pointer dereference in Windows Schannel allows an authorized attacker to deny service over a network.","status":"published","published":"2026-09-08T18:33:07Z","modified":"2026-09-08T18:33:31Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:11:33.442964Z"}],"nvd":[{"id":"CVE-2026-70575","description":"Null pointer dereference in Windows Schannel allows an authorized attacker to deny service over a network.","status":"published","published":"2026-09-08T18:20:10.433Z","modified":"2026-09-24T19:46:23.64Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"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":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:12:44.840742Z"}]}}