{"id":"CVE-2026-88117","aliases":["EUVD-2026-100152","GHSA-rg27-5rxq-2gc9"],"status":"published","title":"Windows DHCP Server Remote Code Execution Vulnerability","description":"Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00696,"percentile":0.53439,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-10-13T19:01:11Z","modified":"2026-11-10T20:44:09Z","products":[{"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_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-2026-88117","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88117"},{"url":"https://github.com/advisories/GHSA-rg27-5rxq-2gc9"}],"sources":{"cve":[{"id":"CVE-2026-88117","title":"Windows DHCP Server Remote Code Execution Vulnerability","description":"Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T19:01:11.846Z","modified":"2026-11-10T20:44:09.843Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-10T22:18:29.471829Z"}],"euvd":[{"id":"EUVD-2026-100152","description":"Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T19:01:11Z","modified":"2026-11-10T20:44:09Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T22:23:56.642439Z"}],"ghsa":[{"id":"GHSA-rg27-5rxq-2gc9","title":"Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a...","description":"Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T21:36:39Z","modified":"2026-10-13T21:36:47Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:13:19.101875Z"}],"nvd":[{"id":"CVE-2026-88117","description":"Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-10-13T19:21:30.107Z","modified":"2026-10-28T16:39:42.47Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:58.13117Z"}]}}