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CVE-2019-1212

Windows DHCP Server Denial of Service Vulnerability

CRITICAL
9.8
CVSS Score
Published: August 14, 2019 at 08:55 PM UTC
Updated: June 17, 2026 at 02:28 AM UTC
15 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows Server 2012

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Severity
CRITICAL9.8
Exploit prediction
EPSS 7%
SSVC
PoC

Description

A memory corruption vulnerability exists in the Windows Server DHCP service when processing specially crafted packets. An attacker who successfully exploited the vulnerability could cause the DHCP server service to stop responding. To exploit the vulnerability, a remote unauthenticated attacker could send a specially crafted packet to an affected DHCP server. The security update addresses the vulnerability by correcting how DHCP servers handle network packets.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Windows 10· Microsoft
95%
16071709180318091903
Windows 7· Microsoft
95%
6.1.0 ≤ v < publication6.1.0sp1
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows 8-1· Microsoft
95%
6.3.0 ≤ v < publication6.3.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows Rt 8-1· Microsoft
95%
All versions
Windows Server 2008· Microsoft
95%
6.0.0 ≤ v < publication6.1.0 ≤ v < publication6.0.06.1.0r2 sp1sp2
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows Server 2012· Microsoft
95%
6.2.0 ≤ v < publication6.3.0 ≤ v < publication6.2.06.3.0r2
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows Server 2016· Microsoft
95%
10.0.0 ≤ v < publication10.0.018031903
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows Server 2019· Microsoft
95%
10.0.0 ≤ v < publication10.0.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows 10 1607· Microsoft
60%
10.0.0 ≤ v < publication10.0.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows 10 1709· Microsoft
60%
10.0.0 ≤ v < publication10.0.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1212

SSVC — Action Prioritization

SSVCPoCAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

9.8CRITICALmicrosoft
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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