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Critical MSRC-CVE-2026-62823 1 CVE

Windows DHCP Server Remote Code Execution Vulnerability

Published Aug 11, 2026 · Updated Sep 8, 2026 · Revision 3

Vendor: Microsoft

Summary

Impact: Remote Code Execution. Microsoft rating: Critical. Not known to be exploited — Exploitation More Likely. Customer action: Required.

Details

How could an attacker exploit this vulnerability?
An unauthenticated attacker could exploit this vulnerability by sending a specially crafted packet to an affected service over the network. Successful exploitation could allow the attacker to execute code on the target system. No authentication or user interaction is required.

Security updates
10.0.17763.9121 — https://support.microsoft.com/help/5120238
10.0.20348.5499 — https://support.microsoft.com/help/5120242
10.0.20348.5440 — https://support.microsoft.com/help/5120229
10.0.26100.33296 — https://support.microsoft.com/help/5120233
10.0.26100.33222 — https://support.microsoft.com/help/5120228
10.0.14393.9418 — https://support.microsoft.com/help/5120418
6.2.9200.26280 — https://support.microsoft.com/help/5120386
6.3.9600.23338 — https://support.microsoft.com/help/5120385

Vulnerabilities 1

Revision history

  1. #3

    Updated software table to remove clients versions because this vulnerability only impacts Windows Servers. This is an informational change only.

  2. #2

    Updated an acknowledgement. This is an informational change only.

  3. #1

    Information published.

References