CVE-2026-69266: Windows DHCP Server Remote Code Execution Vulnerability
Integer overflow or wraparound in Windows DHCP Server allows an unauthorized 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 6.2.9200.26349Patch KB5123065 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9512Patch KB5123099 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33438Patch KB5122871 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.3.9600.23397Patch KB5123066 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5622Patch KB5122882 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9245Patch KB5122876
Event History
Frequently Asked Questions
Does an attacker need valid credentials to exploit this issue?
No. The vector indicates no privileges are required, but exploitation requires user interaction.
What could an attacker achieve if exploitation succeeds?
Successful exploitation can result in code execution, with high impact to confidentiality, integrity, and availability.
Which Microsoft platforms are listed for assessment?
The listed platforms are Microsoft Windows 10 and Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025.