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CVE-2026-88243 Windows DHCP Server Remote Code Execution Vulnerability

CriticalCVSS 9.8
Published
Updated
Exploit status
No public exploit known

Description

Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to execute code over a network.

Affected products

ProductAffected versionsFixed in
Microsoft Windows Server 2016 < 10.0.14393.9688 10.0.14393.9688
Microsoft Windows Server 2019 < 10.0.17763.9487 10.0.17763.9487
Microsoft Windows Server 2022 < 10.0.20348.5870 10.0.20348.5870
Microsoft Windows Server 2025 < 10.0.26100.33822 10.0.26100.33822
Microsoft Windows Server 2025 < 10.0.26100.33730 10.0.26100.33730
Microsoft Windows Server 2016 >= 10.0.14393.0, < 10.0.14393.9688 10.0.14393.9688
Microsoft Windows Server 2016 (Server Core installation) >= 10.0.14393.0, < 10.0.14393.9688 10.0.14393.9688
Microsoft Windows Server 2019 >= 10.0.17763.0, < 10.0.17763.9487 10.0.17763.9487
Microsoft Windows Server 2019 (Server Core installation) >= 10.0.17763.0, < 10.0.17763.9487 10.0.17763.9487
Microsoft Windows Server 2022 >= 10.0.20348.0, < 10.0.20348.5870 10.0.20348.5870
Microsoft Windows Server 2025 >= 10.0.26100.0, < 10.0.26100.33822 10.0.26100.33822
Microsoft Windows Server 2025 (Server Core installation) >= 10.0.26100.0, < 10.0.26100.33822 10.0.26100.33822

References