CVE-2023-35856
📋 TL;DR
This vulnerability allows remote code execution in Mario Kart Wii game clients through a buffer overflow in network packet handling. Attackers can send specially crafted packets to execute arbitrary code on vulnerable game clients. This affects players using the listed game versions in online multiplayer scenarios.
💻 Affected Systems
- Nintendo Mario Kart Wii
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attacker to install malware, steal data, or gain persistent access to the victim's machine.
Likely Case
Game client crashes or arbitrary code execution leading to system compromise during online multiplayer sessions.
If Mitigated
Limited impact if game is played offline or network traffic is properly filtered.
🎯 Exploit Status
Public proof-of-concept code is available on GitHub demonstrating remote code execution.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: N/A
Vendor Advisory: N/A
Restart Required: No
Instructions:
No official patch available from Nintendo as this is a legacy game. Consider community patches or workarounds.
🔧 Temporary Workarounds
Disable Online Multiplayer
allPrevent exploitation by disabling online multiplayer functionality
Use Community Patches
allApply community-developed patches that fix the buffer overflow vulnerability
Follow instructions at: https://github.com/MikeIsAStar/Mario-Kart-Wii-Remote-Code-Execution
🧯 If You Can't Patch
- Play the game offline only to eliminate network attack vectors
- Use network filtering to block suspicious Mario Kart Wii network traffic
🔍 How to Verify
Check if Vulnerable:
Check game version in game settings or on disc label for RMCP01, RMCE01, RMCJ01, or RMCK01Check Version:
Check game disc or in-game version informationVerify Fix Applied:
Verify community patches are applied or confirm game is played offline only📡 Detection & Monitoring
Log Indicators:
- Game crash logs with memory corruption errors
- Unexpected process execution following game crashes
Network Indicators:
- Unusual network traffic patterns to/from Mario Kart Wii game clients
- Malformed network packets targeting game port
SIEM Query:
N/A for consumer gaming environments