CVE-2025-33181
📋 TL;DR
This vulnerability allows low-privileged users on NVIDIA Cumulus Linux and NVOS systems to inject commands through the NVUE interface, potentially leading to privilege escalation. Attackers could gain administrative control over affected network devices. Organizations using these NVIDIA networking products are at risk.
💻 Affected Systems
- NVIDIA Cumulus Linux
- NVIDIA NVOS
📦 What is this software?
Nvos by Nvidia
Nvos by Nvidia
Nvos by Nvidia
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of network infrastructure with attacker gaining root access to all affected devices, enabling network traffic interception, configuration changes, and lateral movement.
Likely Case
Privilege escalation from low-privileged user to administrative access on individual devices, allowing configuration changes and potential persistence.
If Mitigated
Limited impact with proper access controls, network segmentation, and monitoring in place to detect and contain exploitation attempts.
🎯 Exploit Status
Requires authenticated low-privileged access; command injection vulnerability (CWE-77) typically involves manipulating input parameters
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check NVIDIA advisory for specific patched versions
Vendor Advisory: https://nvidia.custhelp.com/app/answers/detail/a_id/5722
Restart Required: Yes
Instructions:
1. Review NVIDIA advisory for affected versions. 2. Download and apply the appropriate patch from NVIDIA. 3. Restart affected devices. 4. Verify patch application and system functionality.
🔧 Temporary Workarounds
Restrict NVUE Interface Access
linuxLimit access to NVUE interface to only necessary administrative users
# Configure access control lists or firewall rules to restrict NVUE interface access
# Example: iptables -A INPUT -p tcp --dport <nvue_port> -s <trusted_network> -j ACCEPT
Implement Least Privilege
linuxRemove or restrict low-privileged user accounts that can access NVUE interface
# Review and remove unnecessary user accounts
# usermod -L <username> to lock accounts
# Remove users from groups with NVUE access
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected devices from critical systems
- Enable comprehensive logging and monitoring of NVUE interface access and command execution
🔍 How to Verify
Check if Vulnerable:
Check system version against NVIDIA advisory; review user access levels to NVUE interfaceCheck Version:
nvue --version or check OS version via cat /etc/os-releaseVerify Fix Applied:
Verify patched version is installed and test command injection attempts are blocked📡 Detection & Monitoring
Log Indicators:
- Unusual command execution via NVUE interface
- Privilege escalation attempts
- Multiple failed authentication attempts followed by successful access
Network Indicators:
- Unexpected connections to NVUE interface ports
- Anomalous outbound traffic from network devices
SIEM Query:
source="nvue_logs" AND (event_type="command_execution" OR user_privilege_change)