CVE-2020-16899

Windows TCP/IP Denial of Service Vulnerability

High · published October 16, 2020

CVSS v3.1
7.5
EPSS
13%
Percentile
96.4
In the wild
Unconfirmed
What it is

<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>

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.13454 · 96.4th percentile
Published
2020-10-16T22:17Z
EPSS history
Timeline
  • 16 OCT 22:17Z
    Windows TCP/IP Denial of Service Vulnerability
    cvelistv5