PT-2026-47998 · Microsoft · Windows 10 Version 1607+13

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-45634

Mitre

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Out-of-bounds read in Windows DHCP Server allows an authorized attacker to disclose information locally.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-45634

Affected Products

Windows 10 Version 1607

Windows 10 Version 1809

Windows 10 Version 21H2

Windows 10 Version 22H2

Windows 11 Version 23H2

Windows 11 Version 24H2

Windows 11 Version 25H2

Windows 11 Version 26H1

Windows Server 2012

Windows Server 2012 R2

Windows Server 2016

Windows Server 2019

Windows Server 2022

Windows Server 2025

References · 2

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45634 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-45634 · Security Note