CVE-2026-70069: Windows DHCP Server Remote Code Execution Vulnerability
Stack-based buffer overflow in Windows DHCP Server allows an authorized attacker to execute code over a network.
Other sources
Windows DHCP Server Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5761Patch KB5126655 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.2.9200.26434Patch KB5126835 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.23470Patch KB5126836 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33650Patch KB5126646
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Systems running Microsoft Windows DHCP Server are exposed. The listed affected software includes Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025, as well as Microsoft Windows 10.
What access does an attacker need to exploit it?
An attacker must be authorized and can exploit the vulnerability over a network. The supplied vector indicates low attack complexity, no user interaction, and low privileges required.
What is the potential impact of successful exploitation?
Successful exploitation can allow code execution on the affected DHCP Server. The provided severity vector indicates high impact to confidentiality, integrity, and availability.