CVE-2026-62823
Received Received - Intake

Heap-based Buffer Overflow in Windows DHCP Server

Publication date: 2026-08-11

Last updated on: 2026-08-11

Assigner: Microsoft Corporation

Description
Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over an adjacent network.

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Meta Information

Published
2026-08-11
Last Modified
2026-08-11
Generated
2026-08-11
AI Q&A
2026-08-11
EPSS Evaluated
N/A
NVD
CVE-2026-62823
EUVD
EUVD-2026-56675

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft windows_dhcp_server *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

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Executive Summary

This is a heap-based buffer overflow vulnerability in the Windows DHCP Server. It allows an unauthorized attacker to execute arbitrary code over an adjacent network by exploiting a flaw in memory handling.

Impact Analysis

An attacker could gain control of the affected system, leading to potential data breaches, system compromise, or further network infiltration. The impact includes unauthorized code execution with high privileges.

Compliance Impact

This vulnerability could lead to unauthorized access and data exfiltration, violating confidentiality requirements in GDPR and HIPAA. Organizations may face compliance violations, fines, or legal consequences if exploited.

Mitigation Strategies

Apply the latest security update from Microsoft for Windows DHCP Server to patch the heap-based buffer overflow vulnerability.

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