CVE-2019-0726

A memory corruption vulnerability exists in the Windows DHCP client when an attacker sends specially crafted DHCP responses to a client, aka 'Windows DHCP…

published April 8, 2019

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.0th percentile for exploit probability.

CVSS
—
EPSS
54%
Percentile
99.0
In the wild
Unconfirmed
What it is

⚠️ A crafty attacker can exploit this memory corruption vulnerability in the Windows DHCP client just by sending specially crafted DHCP responses! 🔥 Think of the DHCP client as a restaurant that receives orders from a delivery service. If the restaurant doesn't carefully check the order details, it might serve up something unexpected, like a dish with harmful ingredients that disrupts the kitchen! If an attacker successfully sends a malicious DHCP response, they could potentially execute arbitrary code on the client machine. This means they could gain control over the device and have a field day accessing sensitive information, installing malware, or wreaking havoc!

Put simply

Think of the DHCP client as a restaurant that receives orders from a delivery service. If the restaurant doesn't carefully check the order details, it might serve up something unexpected, like a dish with harmful ingredients that disrupts the kitchen! This vulnerability arises because the Windows DHCP client trusts incoming responses without proper validation, leading to memory corruption when processing these specially crafted packets. This oversight can allow an attacker to execute remote code and take control of the affected system.

What to do

If an attacker successfully sends a malicious DHCP response, they could potentially execute arbitrary code on the client machine. This means they could gain control over the device and have a field day accessing sensitive information, installing malware, or wreaking havoc! While this CVE has not been reported as exploited, it’s good practice to ensure your systems are up to date. Regularly apply Windows updates to mitigate vulnerabilities and enhance security. Additionally, consider monitoring your network traffic for any suspicious DHCP responses. You've got this! Stay vigilant, keep your systems patched, and enjoy peace of mind! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.54459 · 99.0th percentile
Published
2019-04-08T23:38Z
EPSS history
Timeline
  • 08 APR 23:38Z
    A memory corruption vulnerability exists in the Windows DHCP client when an attacker sends specially crafted DHCP responses to a client, aka 'Windows DHCP…
    cvelistv5