CVE-2020-16898
Windows TCP/IP Remote Code Execution Vulnerability
<p>A 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.</p> <p>To exploit this vulnerability, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer.</p> <p>The update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.</p>
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows TCP/IP Remote Code Execution Vulnerability
<p>A 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.</p> <p>To exploit this vulnerability, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer.</p> <p>The update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.</p>
- Record
CVE-2020-16898- CVSS 3.1
- 8.8 High
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 - Updated
- 2026-11-02
EUVDEUVD-2020-8856
<p>A 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.</p> <p>To exploit this vulnerability, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer.</p> <p>The update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.</p>
- Record
EUVD-2020-8856- CVSS 3.1
- 8.8 High
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 - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8vrv-2fm5-wpvr
A remote code execution vulnerability exists when the Windows TCP/IP stack improperly handles...
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'.
- Record
GHSA-8vrv-2fm5-wpvr- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
NVD
<p>A 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.</p> <p>To exploit this vulnerability, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer.</p> <p>The update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.</p>
- Record
CVE-2020-16898- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 5.8 Medium
AV:A/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
Affected products
- microsoft windows 10 version 1709
- microsoft windows 10 version 1709 for 32-bit systems
- microsoft windows 10 version 1803
- microsoft windows 10 version 1809
- microsoft windows 10 version 1903 for 32-bit systems
- microsoft windows 10 version 1903 for arm64-based systems
- microsoft windows 10 version 1903 for x64-based systems
- microsoft windows 10 version 1909
- microsoft windows 10 version 2004
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server version 2004
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | advanced-threat-research/CVE-2020-16898 | 2020-10-07 |
| PoC in GitHub | Maliek/CVE-2020-16898_Check | 2020-10-14 |
| PoC in GitHub | ZephrFish/CVE-2020-16898 | 2020-10-14 |
| PoC in GitHub | corelight/CVE-2020-16898 | 2020-10-14 |
| PoC in GitHub | esnet-security/cve-2020-16898 | 2020-10-14 |
| PoC in GitHub | initconf/CVE-2020-16898-Bad-Neighbor | 2020-10-14 |
| PoC in GitHub | 0xeb-bp/cve-2020-16898 | 2020-10-16 |
| PoC in GitHub | Q1984/CVE-2020-16898 | 2020-10-16 |
| PoC in GitHub | CPO-EH/CVE-2020-16898_Checker | 2020-10-17 |
| PoC in GitHub | CPO-EH/CVE-2020-16898_Workaround | 2020-10-17 |
Show 5 moreShow less
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | jiansiting/cve-2020-16898 | 2020-10-17 |
| PoC in GitHub | momika233/CVE-2020-16898-exp | 2020-10-17 |
| PoC in GitHub | komomon/CVE-2020-16898-EXP-POC | 2020-10-20 |
| PoC in GitHub | komomon/CVE-2020-16898--EXP-POC | 2020-10-28 |
| PoC in GitHub | aricooper/suricata-script | 2026-06-05 |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploits, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-16898 is a high vulnerability (CVSS 8.8) in Microsoft Windows 10 Version 1709, published October 16, 2020. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 10.9%, the 95th percentile. No source names a fixed version.