CVE-2026-113863 · Infrastructure
NO FIX YET
A heap-based buffer overflow in the Windows DHCP Client lets an unauthorized attacker on the same network segment elevate privileges. The sources do not say whether a crafted network packet alone is enough or what exact conditions apply.
first public Nov 10, 2026 · 1 source
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Windows machines that use DHCP to get network addresses are the likely exposure, since the flaw sits in the DHCP Client component. The attacker must be on an adjacent network segment. The sources do not list affected Windows builds or whether any non-default configuration is needed.
Not affected if non-windows, static-ip-only
Who cares dhcp, enterprise, windows
winver and compare it against Microsoft's security update guide for CVE-2026-113863sc query Dhcp on machines that use DHCPNo fix yet, per the sources.
Heap-based buffer overflow in Windows DHCP Client allows an unauthorized attacker to elevate privileges over an adjacent network.
This page as .md · .json · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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