{"id":"CVE-2026-65681","aliases":["EUVD-2026-56725","GHSA-v696-h32p-r5vg"],"status":"published","title":"Windows iSCSI Target Service Denial of Service Vulnerability","description":"Null pointer dereference in Windows iSCSI Target Service allows an unauthorized attacker to deny service over a network.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01174,"percentile":0.67779,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2026-08-11T17:06:48Z","modified":"2026-11-10T22:00:35Z","products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"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_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65681","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65681"},{"url":"https://github.com/advisories/GHSA-v696-h32p-r5vg"}],"sources":{"cve":[{"id":"CVE-2026-65681","title":"Windows iSCSI Target Service Denial of Service Vulnerability","description":"Null pointer dereference in Windows iSCSI Target Service allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-08-11T17:06:48.637Z","modified":"2026-11-10T22:00:35.307Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-10T23:49:30.334266Z"}],"euvd":[{"id":"EUVD-2026-56725","description":"Null pointer dereference in Windows iSCSI Target Service allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-08-11T17:06:48Z","modified":"2026-11-10T22:00:35Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T23:24:16.815365Z"}],"ghsa":[{"id":"GHSA-v696-h32p-r5vg","title":"Null pointer dereference in Windows iSCSI Target Service allows an unauthorized attacker to deny...","description":"Null pointer dereference in Windows iSCSI Target Service allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-08-11T18:31:37Z","modified":"2026-08-11T18:31:44Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:10:20.045782Z"}],"nvd":[{"id":"CVE-2026-65681","description":"Null pointer dereference in Windows iSCSI Target Service allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-08-11T17:18:55.857Z","modified":"2026-08-16T19:17:17.397Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:12:36.880938Z"}]}}