CVE-2024-38063 in Windows
Summary
by MITRE • 08/13/2024
Windows TCP/IP Remote Code Execution Vulnerability
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 05/08/2026
This vulnerability represents a critical remote code execution flaw within the Windows TCP/IP stack that allows attackers to execute arbitrary code on targeted systems without authentication. The vulnerability stems from improper handling of network packets during TCP connection establishment and data processing phases, creating opportunities for malicious actors to inject and execute code remotely. The flaw exists in the way Windows processes incoming TCP segments and manages connection state transitions, particularly when handling malformed or specially crafted network traffic that exploits buffer management inconsistencies. This type of vulnerability falls under the CWE-129 weakness category, which specifically addresses issues related to improper validation of input boundaries during buffer operations. The attack surface is extensive since TCP/IP is fundamental to network communications and the vulnerability can be exploited through various network interfaces including wired and wireless connections.
The technical exploitation of this vulnerability occurs when an attacker sends specially crafted TCP packets to a target system, triggering memory corruption that leads to arbitrary code execution. The flaw typically manifests during TCP handshake completion or data transmission phases where the kernel fails to properly validate packet headers and payload contents before processing them. Attackers can leverage this vulnerability by constructing packets that cause buffer overflows or memory corruption in kernel space, effectively bypassing standard security controls. The vulnerability is particularly dangerous because it operates at the network protocol level, making it difficult to detect through traditional application-level security measures. According to the ATT&CK framework, this represents a technique categorized under T1068 - Exploitation for Privilege Escalation and T1133 - External Remote Services, as it enables attackers to gain system-level access through network-based attacks. The exploitability is enhanced by the fact that the vulnerability can be triggered without any user interaction, making it particularly dangerous in enterprise environments.
The operational impact of this vulnerability extends beyond simple remote code execution to encompass complete system compromise and potential lateral movement within networks. Once successfully exploited, attackers can establish persistent backdoors, escalate privileges to SYSTEM level, and use the compromised system as a launching point for further attacks against other network resources. The vulnerability can be exploited across multiple Windows versions including server and desktop operating systems, creating widespread exposure across enterprise environments. Organizations with exposed network services or systems accessible from the internet face the highest risk of exploitation, as the attack vector requires no authentication and can be automated through scanning tools. The vulnerability also affects systems with default TCP/IP configurations, making it particularly concerning for organizations with limited network segmentation or security controls. Security professionals have noted that the exploitation of such vulnerabilities often leads to extended periods of undetected compromise, as the malicious activity can be hidden within normal network traffic patterns.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security posture improvements. The most effective immediate response involves applying Microsoft security patches and updates as soon as they become available, which typically address the underlying buffer management and input validation flaws. Network segmentation and access control measures should be implemented to limit exposure of critical systems to untrusted networks, particularly by blocking unnecessary TCP ports and services. Intrusion detection systems should be configured to monitor for anomalous TCP packet patterns that might indicate exploitation attempts, with specific attention to unusual connection establishment sequences or malformed packet headers. Organizations should implement network traffic filtering rules that block suspicious TCP traffic patterns and employ endpoint protection solutions that can detect and prevent exploitation attempts. The implementation of the principle of least privilege and regular security assessments can help reduce the overall attack surface and improve detection capabilities. Additionally, monitoring for unusual system behavior and implementing comprehensive logging of network activity can aid in identifying potential exploitation attempts and supporting incident response activities.