{"id":"CVE-2026-69777","aliases":["EUVD-2026-73624","GHSA-7mwr-pr99-96pm"],"status":"published","title":"Windows DHCP Client Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Windows DHCP Client allows an authorized attacker to elevate privileges over an adjacent network.","severity":{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/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":0.00576,"percentile":0.47934,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-09-08T17:16:42Z","modified":"2026-11-10T21:35:46Z","products":[{"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_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69777","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69777"},{"url":"https://github.com/advisories/GHSA-7mwr-pr99-96pm"}],"sources":{"cve":[{"id":"CVE-2026-69777","title":"Windows DHCP Client Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Windows DHCP Client allows an authorized attacker to elevate privileges over an adjacent network.","status":"published","published":"2026-09-08T17:16:42.489Z","modified":"2026-11-10T21:35:46.419Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T22:48:53.006191Z"}],"euvd":[{"id":"EUVD-2026-73624","description":"Heap-based buffer overflow in Windows DHCP Client allows an authorized attacker to elevate privileges over an adjacent network.","status":"published","published":"2026-09-08T17:16:42Z","modified":"2026-11-10T21:35:46Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T22:23:48.145704Z"}],"ghsa":[{"id":"GHSA-7mwr-pr99-96pm","title":"Heap-based buffer overflow in Windows DHCP Client allows an authorized attacker to elevate...","description":"Heap-based buffer overflow in Windows DHCP Client allows an authorized attacker to elevate privileges over an adjacent network.","status":"published","published":"2026-09-08T18:32:58Z","modified":"2026-09-08T18:33:12Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:11:32.262918Z"}],"nvd":[{"id":"CVE-2026-69777","description":"Heap-based buffer overflow in Windows DHCP Client allows an authorized attacker to elevate privileges over an adjacent network.","status":"published","published":"2026-09-08T18:19:49.103Z","modified":"2026-09-11T14:17:31.68Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:12:44.840742Z"}]}}