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Vulnerability record · CVE-2019-1206 · published 14 August 2019

CVE-2019-1206: Microsoft windows server 2012 out-of-bounds write vulnerability

Microsoft · Windows Server 2012

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.

7.5 CVSS 3.1 High EPSS 5.3% · top 7.7% CWE-787 · Out-of-bounds write
7.5CVSS 3.1 base score, v2 5.0
5.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1206 PatchVendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1206 PatchVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-1206), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.