Critical CVSS 9.8 EPSS 0.6285 2019-03 archive

Executive Summary

A memory corruption vulnerability exists in the Windows DHCP client when an attacker sends specially crafted DHCP responses to a client. An attacker who successfully exploited the vulnerability could run arbitrary code on the client machine. To exploit the vulnerability, an attacker could send specially crafted DHCP responses to a client. The security update addresses the vulnerability by correcting how Windows DHCP clients handle certain DHCP responses.

Overview

9.8
CVSS CRITICAL
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Mar 12 2019
Last Updated Mar 12 2019
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.6285 — 0.99089 percentile

CVSS Vector

ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
Temporal Score: 8.8

EPSS Score

0.6285
probability of exploitation in the next 30 days
0.99089 percentile - updated 2026-06-20
View on FIRST.org

Affected Products

9 affected products
Product KB Article Severity Impact Restart Required
Windows 10 Version 1803 for 32-bit Systems 4489868 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1803 for ARM64-based Systems 4489868 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1803 for x64-based Systems 4489868 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for 32-bit Systems 4489899 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for ARM64-based Systems 4489899 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for x64-based Systems 4489899 (Security Update) Critical Remote Code Execution Yes
Windows Server 2019 4489899 (Security Update) Critical Remote Code Execution Yes
Windows Server 2019 (Server Core installation) 4489899 (Security Update) Critical Remote Code Execution Yes
Windows Server, version 1803 (Server Core Installation) 4489868 (Security Update) Critical Remote Code Execution Yes

Patches

2 patches
Article Type Restart
4489868 Security Update Yes
4489899 Security Update Yes

Known Exploits

Acknowledgments

Microsoft Windows Enterprise Security Team