CVE-2025-33194

5.7 MEDIUM

📋 TL;DR

This vulnerability in NVIDIA DGX Spark GB10's SROOT firmware allows attackers to exploit improper input processing. Successful exploitation could lead to information disclosure or denial of service. Only users of NVIDIA DGX Spark GB10 systems are affected.

💻 Affected Systems

Products:
  • NVIDIA DGX Spark GB10
Versions: All versions prior to firmware update
Operating Systems: Linux-based systems running NVIDIA DGX software
Default Config Vulnerable: ⚠️ Yes
Notes: Requires access to the SROOT firmware interface, typically through management interfaces.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise leading to sensitive data exposure and persistent denial of service affecting critical operations.

🟠

Likely Case

Temporary denial of service or limited information disclosure requiring system reboot to restore functionality.

🟢

If Mitigated

Minimal impact with proper network segmentation and access controls limiting attacker reachability.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires specific knowledge of SROOT firmware and access to vulnerable interfaces.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Latest firmware update from NVIDIA

Vendor Advisory: https://nvidia.custhelp.com/app/answers/detail/a_id/5720

Restart Required: Yes

Instructions:

1. Download latest firmware from NVIDIA support portal. 2. Backup current configuration. 3. Apply firmware update via management interface. 4. Reboot system to complete installation.

🔧 Temporary Workarounds

Network Segmentation

linux

Restrict access to management interfaces to trusted networks only

iptables -A INPUT -p tcp --dport [MANAGEMENT_PORT] -s [TRUSTED_NETWORK] -j ACCEPT
iptables -A INPUT -p tcp --dport [MANAGEMENT_PORT] -j DROP

Access Control Hardening

all

Implement strict authentication and authorization for management interfaces

🧯 If You Can't Patch

  • Isolate affected systems from untrusted networks
  • Implement additional monitoring for anomalous access patterns to management interfaces

🔍 How to Verify

Check if Vulnerable:

Check firmware version via NVIDIA management interface or CLI tools

Check Version:

nvidia-smi --query-gpu=driver_version --format=csv

Verify Fix Applied:

Verify firmware version matches patched version in NVIDIA advisory

📡 Detection & Monitoring

Log Indicators:

  • Unusual access patterns to SROOT firmware interfaces
  • Multiple failed authentication attempts to management interfaces
  • System crash or reboot events following management interface access

Network Indicators:

  • Unexpected connections to management ports from untrusted sources
  • Anomalous traffic patterns to firmware update endpoints

SIEM Query:

source="*nvidia*" AND (event_type="firmware_access" OR event_type="management_interface") AND src_ip NOT IN [TRUSTED_NETWORKS]

🔗 References

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