CVE-2019-1206

Name: CVE-2019-1206
Creator: NVD / NIST
Published: 2019-08-14T21:15:18.283+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 5.30%

Last modified Jun 17, 2026

CVE-2019-1206 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 5.30% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

5.30%

91.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Microsoft	Windows Server 2012	All versions
Microsoft	Windows Server 2012	r2
Microsoft	Windows Server 2016	All versions
Microsoft	Windows Server 2016	1803
Microsoft	Windows Server 2016	1903
Microsoft	Windows Server 2019	All versions

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1206Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1206Patch, Vendor Advisory

Timeline

Published: Aug 14, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-1206?

How severe is CVE-2019-1206?

CVE-2019-1206 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 5.30% probability of exploitation in the next 30 days.

How do I fix CVE-2019-1206?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-1206?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST