{"id":"CVE-2026-45602","aliases":["EUVD-2026-35562","GHSA-9g25-jr9m-x4jh"],"status":"published","title":"Windows Dynamic Host Configuration Protocol (DHCP) Tampering Vulnerability","description":"No cwe for this issue in Windows DHCP Server allows an unauthorized attacker to perform tampering over a network.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00366,"percentile":0.30665,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-229","CWE-349"],"published":"2026-06-09T17:05:38Z","modified":"2026-09-24T13:44:31Z","products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"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 2012"},{"vendor":"microsoft","product":"windows server 2012 (server core installation)"},{"vendor":"microsoft","product":"windows server 2012 r2"},{"vendor":"microsoft","product":"windows server 2012 r2 (server core installation)"},{"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_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_2012"},{"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-2026-45602","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45602"},{"url":"https://github.com/advisories/GHSA-9g25-jr9m-x4jh"}],"sources":{"cve":[{"id":"CVE-2026-45602","title":"Windows Dynamic Host Configuration Protocol (DHCP) Tampering Vulnerability","description":"No cwe for this issue in Windows DHCP Server allows an unauthorized attacker to perform tampering over a network.","status":"published","published":"2026-06-09T17:05:38.15Z","modified":"2026-09-24T13:44:31.959Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-349","CWE-229"],"updated_at":"2026-11-02T13:46:32.755125Z"}],"euvd":[{"id":"EUVD-2026-35562","description":"No cwe for this issue in Windows DHCP Server allows an unauthorized attacker to perform tampering over a network.","status":"published","published":"2026-06-09T17:05:38Z","modified":"2026-09-24T13:44:31Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-02T17:27:59.112143Z"}],"ghsa":[{"id":"GHSA-9g25-jr9m-x4jh","title":"No cwe for this issue in Windows DHCP Server allows an unauthorized attacker to perform tampering...","description":"No cwe for this issue in Windows DHCP Server allows an unauthorized attacker to perform tampering over a network.","status":"published","published":"2026-06-09T18:30:52Z","modified":"2026-06-16T21:32:59Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-229","CWE-349"],"updated_at":"2026-11-02T15:08:49.42455Z"}],"nvd":[{"id":"CVE-2026-45602","description":"No cwe for this issue in Windows DHCP Server allows an unauthorized attacker to perform tampering over a network.","status":"published","published":"2026-06-09T17:17:28.753Z","modified":"2026-07-20T20:10:00.11Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"secondary"}],"cwes":["CWE-349","CWE-229"],"updated_at":"2026-11-02T14:12:23.109705Z"}]}}