CVE-2026-45634

Analyzed Analyzed - Analysis Complete

Out-of-Bounds Read in Windows DHCP Server

Publication date: 2026-06-09

Last updated on: 2026-06-12

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-09

Last Modified

2026-06-12

Generated

2026-06-30

AI Q&A

2026-06-09

EPSS Evaluated

2026-06-28

NVD

CVE-2026-45634

EUVD

EUVD-2026-35688

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_10_1607	to 10.0.14393.9234 (exc)
microsoft	windows_10_1607	to 10.0.14393.9234 (exc)
microsoft	windows_10_1809	to 10.0.17763.8880 (exc)
microsoft	windows_10_1809	to 10.0.17763.8880 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7417 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7417 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7417 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7417 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7417 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7417 (exc)
microsoft	windows_server_2016	to 10.0.14393.9234 (exc)
microsoft	windows_server_2019	to 10.0.17763.8880 (exc)
microsoft	windows_server_2022	to 10.0.20348.5256 (exc)
microsoft	windows_server_2025	to 10.0.26100.32995 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7219 (exc)
microsoft	windows_11_24h2	to 10.0.26100.8655 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8655 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2269 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds read in the Windows DHCP Server. It allows an authorized attacker to read memory outside the intended boundaries, which can lead to the disclosure of sensitive information locally on the affected system.

Impact Analysis

The impact of this vulnerability is information disclosure. An authorized attacker with local access could exploit this flaw to obtain sensitive information from memory, potentially compromising confidentiality.

Compliance Impact

This vulnerability allows an authorized attacker to disclose information locally due to an out-of-bounds read in Windows DHCP Server.

Information disclosure vulnerabilities can potentially impact compliance with data protection regulations such as GDPR and HIPAA, as unauthorized access to sensitive information may violate requirements for data confidentiality and protection.

However, the provided information does not specify the exact nature or sensitivity of the disclosed information, nor does it detail the compliance implications explicitly.

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