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High MSRC-CVE-2024-21416 1 CVE

Windows TCP/IP Remote Code Execution Vulnerability

Published Sep 10, 2024 · Updated Sep 10, 2024

Summary

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

Details

Windows 11, version 24H2 is not generally available yet. Why are there updates for this version of Windows listed in the Security Updates table?
The new Copilot+ devices that are now publicly available come with Windows 11, version 24H2 installed. Customers with these devices need to know about any vulnerabilities that affect their machine and to install the updates if they are not receiving automatic updates. Note that the general availability date for Windows 11, version 24H2 is scheduled for later this year.

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to have a deep understanding of the system and the ability to manipulate its components to trigger a specific condition. Successful exploitation is not guaranteed and depends on a combination of factors that may include the environment, system configuration, and the presence of additional security measures.

How could an attacker exploit this vulnerability?
An attacker must send a specially crafted request to a Windows machine that has NetNAT service configured, which is a non-default configuration. In addition, specific network conditions must exist for exploitation to succeed.

Security updates
10.0.17763.6293 — https://support.microsoft.com/help/5043050
10.0.20348.2700 — https://support.microsoft.com/help/5042881
10.0.20348.2695 — https://support.microsoft.com/help/5042880
10.0.22000.3197 — https://support.microsoft.com/help/5043067
10.0.19044.4894 — https://support.microsoft.com/help/5043064
10.0.22621.4169 — https://support.microsoft.com/help/5043076
10.0.25398.1128 — https://support.microsoft.com/help/5043055
10.0.26100.1742 — https://support.microsoft.com/help/5043080

Vulnerabilities 1

Revision history

  1. #1

    Information published.

References