CVE-2025-29967: Windows 10 1507 RCE Vulnerability

CVE-2025-29967 Overview

Heap-based buffer overflow in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.

Critical Impact
This vulnerability enables remote code execution, potentially allowing attackers to fully compromise targeted systems.

Affected Products

Microsoft Windows 10 1507
Microsoft Windows 10 1607
Microsoft Windows 10 1809

Discovery Timeline

2025-05-13 - CVE 2025-29967 published to NVD
2025-05-19 - Last updated in NVD database

Technical Details for CVE-2025-29967

Vulnerability Analysis

This vulnerability emerges from improper bounds handling of input data within the Remote Desktop Gateway Service. A specially crafted request can lead to heap-based buffer overflow, facilitating unauthorized code execution.

Root Cause

The defect arises from inadequate validation and sanitization of user-supplied inputs, causing a heap overflow condition that corrupts the program memory.

Attack Vector

Attackers can exploit this vulnerability remotely via network by sending malformed requests to the Remote Desktop Gateway Service.

cpp

// Example exploitation code (sanitized)
#include <iostream>
#include <string.h>

int main() {
    char buffer[10];
    const char *input = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA";
    strcpy(buffer, input); // Example of overflow
    std::cout << "Buffer content: " << buffer << std::endl;
}

Detection Methods for CVE-2025-29967

Indicators of Compromise

Unexpected Remote Desktop Gateway crashes
Unusual network traffic directed to Remote Desktop Gateway ports
Unexpected process behavior related to svchost.exe

Detection Strategies

Implement network monitoring to detect abnormal access patterns and anomalous requests sent to the Remote Desktop Gateway Service.

Monitoring Recommendations

Leverage SentinelOne's real-time behavioral AI model to monitor suspicious activities. Set up alerts for atypical Remote Desktop Gateway service restarts or anomalies.

How to Mitigate CVE-2025-29967

Immediate Actions Required

Disable Remote Desktop Gateway Service if not needed.
Monitor network traffic for unsolicited connections.
Validate and sanitize all input data communications.

Patch Information

Microsoft has released patches available in security advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29967.

Workarounds

To mitigate potential exploitation, configure firewall rules to restrict incoming traffic to Remote Desktop Gateway.

bash

# Configuration example
iptables -A INPUT -p tcp --dport 3389 -j DROP