CVE-2020-16899

published 2020-10-16

CVE-2020-16899: A denial of service vulnerability exists when the Windows TCP/IP stack improperly handles ICMPv6 Router Advertisement packets. An attacker who successfully…

Priority P3 49 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

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.
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.
The update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.

Affected

30 ranges · showing 25

Vendor	Product	Version range	Fixed in
microsoft	windows_10	—	—
microsoft	windows_10	—	—
microsoft	windows_10	—	—
microsoft	windows_10	—	—
microsoft	windows_10	—	—
microsoft	windows_10	—	—
microsoft	windows_10_version_1709	>= 10.0.0 < publication	publication
microsoft	windows_10_version_1709_for_32-bit_systems	>= 10.0.0 < publication	publication
microsoft	windows_10_version_1803	>= 10.0.0 < publication	publication
microsoft	windows_10_version_1809	>= 10.0.0 < publication	publication
microsoft	windows_10_version_1903_for_32-bit_systems	>= 10.0.0 < publication	publication
microsoft	windows_10_version_1903_for_arm64-based_systems	>= 10.0.0 < publication	publication
microsoft	windows_10_version_1903_for_x64-based_systems	>= 10.0.0 < publication	publication
microsoft	windows_10_version_1909	>= 10.0.0 < publication	publication
microsoft	windows_10_version_2004	>= 10.0.0 < publication	publication
microsoft	windows_server_2016	—	—
microsoft	windows_server_2016	—	—
microsoft	windows_server_2016	—	—
microsoft	windows_server_2019	>= 10.0.0 < publication	publication
microsoft	windows_server_version_2004	>= 10.0.0 < publication	publication
msrc	windows_10_version_1709	—	—
msrc	windows_10_version_1803	—	—
msrc	windows_10_version_1809	—	—
msrc	windows_10_version_1903	—	—
msrc	windows_10_version_1909	—	—

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v2.0 7.8 HIGH AV:N/AC:L/Au:N/C:N/I:N/A:C

vendor_msrc 7.5 HIGH

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.