CVE-2026-70250: Windows DHCP Client Remote Code Execution Vulnerability
Use after free in Windows DHCP Client allows an unauthorized attacker to execute code over an adjacent network.
Other sources
Windows DHCP Client 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 10.0.14393.9612Patch KB5126868 - 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 10.0.26100.33650Patch KB5126646 - 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 6.3.9600.23470Patch KB5126836
Event History
Frequently Asked Questions
Which systems are identified as affected?
The affected software list includes Microsoft Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022, and Windows Server 2025.
Does exploitation require credentials or user interaction?
No privileges and no user interaction are required according to the supplied CVSS vector. The attacker must be positioned on an adjacent network.
What level of impact can successful exploitation have?
The CVSS vector rates confidentiality, integrity, and availability impact as high. Successful exploitation allows code execution.