{"id":"CVE-2026-88212","aliases":["EUVD-2026-122077","GHSA-2gp9-cm28-cf9v"],"status":"published","title":"Windows Network Address Translation (NAT) Remote Code Execution Vulnerability","description":"Use after free in Windows Network Address Translation (NAT) allows an unauthorized attacker to execute code over an adjacent network.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/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":"2026-11-14","score":0.00282,"percentile":0.20966,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-11-10T18:20:10Z","modified":"2026-11-10T21:34:04Z","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 11 version 26h2"},{"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)"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88212","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88212"},{"url":"https://github.com/advisories/GHSA-2gp9-cm28-cf9v"}],"sources":{"cve":[{"id":"CVE-2026-88212","title":"Windows Network Address Translation (NAT) Remote Code Execution Vulnerability","description":"Use after free in Windows Network Address Translation (NAT) allows an unauthorized attacker to execute code over an adjacent network.","status":"published","published":"2026-11-10T18:20:10.363Z","modified":"2026-11-13T18:08:58.897Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/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":"2026-11-10T19:39:59.74912Z"}],"euvd":[{"id":"EUVD-2026-122077","description":"Use after free in Windows Network Address Translation (NAT) allows an unauthorized attacker to execute code over an adjacent network.","status":"published","published":"2026-11-10T18:20:10Z","modified":"2026-11-13T18:08:58Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-11T00:24:54.978715Z"}],"ghsa":[{"id":"GHSA-2gp9-cm28-cf9v","title":"Use after free in Windows Network Address Translation (NAT) allows an unauthorized attacker to...","description":"Use after free in Windows Network Address Translation (NAT) allows an unauthorized attacker to execute code over an adjacent network.","status":"published","published":"2026-11-10T21:33:58Z","modified":"2026-11-10T21:34:04Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-10T21:57:56.197754Z"}],"nvd":[{"id":"CVE-2026-88212","description":"Use after free in Windows Network Address Translation (NAT) allows an unauthorized attacker to execute code over an adjacent network.","status":"published","published":"2026-11-10T19:21:27.47Z","modified":"2026-11-10T21:21:36.483Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-11T00:21:54.604297Z"}]}}