CVE-2020-16899

Windows TCP/IP Denial of Service Vulnerability

<p>A denial of service vulnerability exists when the Windows TCP/IP stack improperly handles ICMPv6 Router Advertisement packets. An attacker who successfully exploited this vulnerability could cause a target system to stop responding.</p><p>To exploit this vulnerability, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer. The vulnerability would not allow an attacker to execute code or to elevate user rights directly.</p><p>The update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.</p>

Affected

Microsoft · Windows 10 Version 1803 · Windows 10 Version 1809 · Windows Server 2019 · Windows Server 2019 (Server Core installation) · Windows 10 Version 1909 · Windows Server, version 1909 (Server Core installation)

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 NVD

7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS

13.45% chance of exploitation in the next 30 days, 96th percentile

Published

2020-10-16

Updated

2024-08-04

Proof-of-concept exploits (1)

• advanced-threat-research/CVE-2020-1689920★ · 2020-10-19

Security advisories

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16899

References

• CVE Record
• NVD entry

Related

• CVE-2020-16898