CVE-2019-1206 HIGH

CVE-2019-1206: Windows DHCP Server Denial of Service Vulnerability

Vendor Microsoft
Product Windows Server, version 1803 (Server Core Installation)
Published August 14, 2019
Last update August 4, 2024

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS 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

What the vulnerability does

01Description

A memory corruption vulnerability exists in the Windows Server DHCP service when an attacker sends specially crafted packets to a DHCP failover server. An attacker who successfully exploited the vulnerability could cause the DHCP service to become nonresponsive. To exploit the vulnerability, an attacker could send a specially crafted packet to a DHCP server. However, the DHCP server must be set to failover mode for the attack to succeed. The security update addresses the vulnerability by correcting how DHCP failover servers handle network packets.

Key dates

02Disclosure timeline

August 14, 2019 CVE published
August 4, 2024 Record updated