{"id":"CVE-2020-16898","aliases":["EUVD-2020-8856","GHSA-8vrv-2fm5-wpvr"],"status":"published","title":"Windows TCP/IP Remote Code Execution Vulnerability","description":"\u003cp\u003eA remote code execution vulnerability exists when the Windows TCP/IP stack improperly handles ICMPv6 Router Advertisement packets. An attacker who successfully exploited this vulnerability could gain the ability to execute code on the target server or client.\u003c/p\u003e\n\u003cp\u003eTo exploit this vulnerability, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer.\u003c/p\u003e\n\u003cp\u003eThe update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.\u003c/p\u003e","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.1094,"percentile":0.95921,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2020-10-16T22:17:40Z","modified":"2026-06-17T02:58:13Z","exploits":[{"source":"pocgithub","id":"advanced-threat-research/CVE-2020-16898","title":"advanced-threat-research/CVE-2020-16898","date":"2020-10-07","url":"https://github.com/advanced-threat-research/CVE-2020-16898"},{"source":"pocgithub","id":"Maliek/CVE-2020-16898_Check","title":"Maliek/CVE-2020-16898_Check","date":"2020-10-14","url":"https://github.com/Maliek/CVE-2020-16898_Check"},{"source":"pocgithub","id":"ZephrFish/CVE-2020-16898","title":"ZephrFish/CVE-2020-16898","date":"2020-10-14","url":"https://github.com/ZephrFish/CVE-2020-16898"},{"source":"pocgithub","id":"corelight/CVE-2020-16898","title":"corelight/CVE-2020-16898","date":"2020-10-14","url":"https://github.com/corelight/CVE-2020-16898"},{"source":"pocgithub","id":"esnet-security/cve-2020-16898","title":"esnet-security/cve-2020-16898","date":"2020-10-14","url":"https://github.com/esnet-security/cve-2020-16898"},{"source":"pocgithub","id":"initconf/CVE-2020-16898-Bad-Neighbor","title":"initconf/CVE-2020-16898-Bad-Neighbor","date":"2020-10-14","url":"https://github.com/initconf/CVE-2020-16898-Bad-Neighbor"},{"source":"pocgithub","id":"0xeb-bp/cve-2020-16898","title":"0xeb-bp/cve-2020-16898","date":"2020-10-16","url":"https://github.com/0xeb-bp/cve-2020-16898"},{"source":"pocgithub","id":"Q1984/CVE-2020-16898","title":"Q1984/CVE-2020-16898","date":"2020-10-16","url":"https://github.com/Q1984/CVE-2020-16898"},{"source":"pocgithub","id":"CPO-EH/CVE-2020-16898_Checker","title":"CPO-EH/CVE-2020-16898_Checker","date":"2020-10-17","url":"https://github.com/CPO-EH/CVE-2020-16898_Checker"},{"source":"pocgithub","id":"CPO-EH/CVE-2020-16898_Workaround","title":"CPO-EH/CVE-2020-16898_Workaround","date":"2020-10-17","url":"https://github.com/CPO-EH/CVE-2020-16898_Workaround"},{"source":"pocgithub","id":"jiansiting/cve-2020-16898","title":"jiansiting/cve-2020-16898","date":"2020-10-17","url":"https://github.com/jiansiting/cve-2020-16898"},{"source":"pocgithub","id":"momika233/CVE-2020-16898-exp","title":"momika233/CVE-2020-16898-exp","date":"2020-10-17","url":"https://github.com/momika233/CVE-2020-16898-exp"},{"source":"pocgithub","id":"komomon/CVE-2020-16898-EXP-POC","title":"komomon/CVE-2020-16898-EXP-POC","date":"2020-10-20","url":"https://github.com/komomon/CVE-2020-16898-EXP-POC"},{"source":"pocgithub","id":"komomon/CVE-2020-16898--EXP-POC","title":"komomon/CVE-2020-16898--EXP-POC","date":"2020-10-28","url":"https://github.com/komomon/CVE-2020-16898--EXP-POC"},{"source":"pocgithub","id":"aricooper/suricata-script","title":"aricooper/suricata-script","date":"2026-06-05","url":"https://github.com/aricooper/suricata-script"}],"products":[{"vendor":"microsoft","product":"windows 10 version 1709"},{"vendor":"microsoft","product":"windows 10 version 1709 for 32-bit systems"},{"vendor":"microsoft","product":"windows 10 version 1803"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 1903 for 32-bit systems"},{"vendor":"microsoft","product":"windows 10 version 1903 for arm64-based systems"},{"vendor":"microsoft","product":"windows 10 version 1903 for x64-based systems"},{"vendor":"microsoft","product":"windows 10 version 1909"},{"vendor":"microsoft","product":"windows 10 version 2004"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server version 2004"},{"vendor":"microsoft","product":"windows server, version 1903 (server core installation)"},{"vendor":"microsoft","product":"windows server, version 1909 (server core installation)"},{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16898","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-16898"},{"url":"https://github.com/advisories/GHSA-8vrv-2fm5-wpvr"}],"sources":{"cve":[{"id":"CVE-2020-16898","title":"Windows TCP/IP Remote Code Execution Vulnerability","description":"\u003cp\u003eA remote code execution vulnerability exists when the Windows TCP/IP stack improperly handles ICMPv6 Router Advertisement packets. An attacker who successfully exploited this vulnerability could gain the ability to execute code on the target server or client.\u003c/p\u003e\n\u003cp\u003eTo exploit this vulnerability, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer.\u003c/p\u003e\n\u003cp\u003eThe update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.\u003c/p\u003e","status":"published","published":"2020-10-16T22:17:40Z","modified":"2024-08-04T13:45:34.539Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:58.787905Z"}],"euvd":[{"id":"EUVD-2020-8856","description":"\u003cp\u003eA remote code execution vulnerability exists when the Windows TCP/IP stack improperly handles ICMPv6 Router Advertisement packets. An attacker who successfully exploited this vulnerability could gain the ability to execute code on the target server or client.\u003c/p\u003e\n\u003cp\u003eTo exploit this vulnerability, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer.\u003c/p\u003e\n\u003cp\u003eThe update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.\u003c/p\u003e","status":"published","published":"2020-10-16T22:17:40Z","modified":"2024-08-04T13:45:34Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-03T03:07:28.222143Z"}],"ghsa":[{"id":"GHSA-8vrv-2fm5-wpvr","title":"A remote code execution vulnerability exists when the Windows TCP/IP stack improperly handles...","description":"A remote code execution vulnerability exists when the Windows TCP/IP stack improperly handles ICMPv6 Router Advertisement packets, aka 'Windows TCP/IP Remote Code Execution Vulnerability'.","status":"published","published":"2022-05-24T17:30:55Z","modified":"2024-01-09T05:04:50Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T14:55:21.919096Z"}],"nvd":[{"id":"CVE-2020-16898","description":"\u003cp\u003eA remote code execution vulnerability exists when the Windows TCP/IP stack improperly handles ICMPv6 Router Advertisement packets. An attacker who successfully exploited this vulnerability could gain the ability to execute code on the target server or client.\u003c/p\u003e\n\u003cp\u003eTo exploit this vulnerability, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer.\u003c/p\u003e\n\u003cp\u003eThe update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.\u003c/p\u003e","status":"published","published":"2020-10-16T23:15:13.633Z","modified":"2026-06-17T02:58:13.373Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":5.8,"vector":"AV:A/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:19.351389Z"}]}}