NVIDIA DGX Spark Vulnerabilities: CVE-2025-33187 (CVSS High) Enable RCE and DoS Attacks

Estimated reading time: 8 minutes

Key takeaways:

  • NVIDIA has addressed critical vulnerabilities in DGX Spark AI workstations.
  • CVE-2025-33187 allows for remote code execution (RCE) and denial-of-service (DoS) attacks.
  • The vulnerabilities affect firmware components and require immediate patching.
  • Exploitation can lead to data theft, system compromise, and privilege escalation.
  • Implementing robust security measures and continuous monitoring is crucial.

Table of Contents:

  1. Analysis Summary
  2. Impact of Exploitation
  3. Indicators of Compromise
  4. Affected Vendors
  5. Remediation
  6. The Role of Threat Intelligence
  7. FAQ

Analysis Summary

NVIDIA has addressed multiple vulnerabilities in its DGX Spark AI workstation, the most critical being CVE-2025-33187, which carries a CVSS score of High. These flaws can lead to remote code execution (RCE) and denial-of-service (DoS) attacks. This blog post analyzes the vulnerabilities and provides remediation steps.

A total of 14 firmware vulnerabilities have been identified in NVIDIA DGX Spark AI workstations. These vulnerabilities affect critical components such as SROOT, OSROOT, and hardware resource controls, potentially allowing attackers to manipulate low-level system functions. The most severe of these is CVE-2025-33187, impacting DGX Spark devices running firmware versions prior to the OTA0 update. Successful exploitation of these vulnerabilities could result in code execution, unauthorized system access, and denial-of-service attacks.

NVIDIA’s Offensive Security Research team discovered these weaknesses. The team warns that attackers with local or privileged access could bypass firmware safeguards, manipulate protected system-on-chip (SoC) regions, and modify hardware controls. These vulnerabilities fall under several Common Weakness Enumeration (CWE) categories:

  • CWE-269 (Privilege Issues)
  • CWE-787 (Out-of-bounds Write)
  • CWE-20 (Input Validation Errors)

Depending on the specific vulnerability exploited, the consequences range from code execution and information disclosure to data tampering, system manipulation, denial-of-service, and privilege escalation.

The CVEs identified have varying severity scores. Some flaws allow direct code execution or access to protected memory regions, while others enable data leakage or system disruption. While most vulnerabilities require local access, NVIDIA notes that some can be triggered without full privileges, broadening their potential impact.

Given the use of DGX Spark workstations for AI and machine-learning workloads, successful exploitation could lead to the theft or compromise of sensitive AI models, datasets, and training pipelines. This underscores the importance of supply-chain risk monitoring and robust security measures.

Impact of Exploitation

The exploitation of these vulnerabilities can have several significant impacts:

  • Gain Access: Unauthorized access to sensitive systems and data.
  • Code Execution: Ability to execute arbitrary code on the affected system.
  • Data Theft: Exfiltration of sensitive data, including AI models and training data.
  • Denial-of-Service: Disruption of services and system availability.
  • Privilege Escalation: Gaining elevated privileges, leading to further compromise.

Indicators of Compromise

The following CVEs are associated with these vulnerabilities:

  • CVE-2025-33187
  • CVE-2025-33188
  • CVE-2025-33189
  • CVE-2025-33190
  • CVE-2025-33191
  • CVE-2025-33192
  • CVE-2025-33193
  • CVE-2025-33194
  • CVE-2025-33195
  • CVE-2025-33196
  • CVE-2025-33197
  • CVE-2025-33198
  • CVE-2025-33199
  • CVE-2025-33200

These CVEs should be used as PurpleOps Solutions indicators within security monitoring systems. It is also crucial to leverage a cyber threat intelligence platform to stay informed about potential exploits targeting these vulnerabilities.

Affected Vendors

  • NVIDIA

Remediation

To mitigate the risks associated with these vulnerabilities, the following remediation steps should be taken:

  1. Immediate Update: Install the latest DGX OS OTA0 update, which patches all 14 vulnerabilities.
  2. Firmware Verification: Verify firmware versions on all DGX Spark devices and ensure none are running versions prior to OTA0.
  3. Access Restriction: Restrict local and privileged access to the DGX Spark workstation to minimize exploitation risk.
  4. Access Control Implementation: Implement strict access controls for administrators and privileged users to prevent unauthorized modifications.
  5. Secure Boot Enablement: Enable secure boot and firmware integrity checks to detect tampering of SROOT, OSROOT, or hardware controls.
  6. System Log Monitoring: Monitor system logs and hardware access events for abnormal activity or unauthorized access attempts.
  7. Network Segmentation: Segment DGX Spark systems from general networks to limit lateral movement in case of compromise.
  8. Security Policy Updates: Regularly update security policies for AI and ML infrastructure to include firmware-level protection guidelines.
  9. Vulnerability Reporting: Report any suspicious activity or potential vulnerabilities to NVIDIA’s Product Security team promptly.

Practical Takeaways:

Technical Readers: Immediately apply the DGX OS OTA0 update. Implement and enforce strict access control policies, focusing on least privilege. Regularly monitor system logs for unusual activity. Consider using a live ransomware API to detect and respond to potential ransomware attacks that might target exploited systems.

Non-Technical Readers: Ensure your organization has a process for promptly applying security updates to critical systems like the DGX Spark. Verify that access controls are in place and enforced. Work with your IT team to establish a monitoring program for unusual system activity.

The Role of Threat Intelligence

Staying ahead of emerging threats requires proactive real-time ransomware intelligence. Leveraging a cyber threat intelligence platform can provide insights into attacker tactics, techniques, and procedures (TTPs) related to these vulnerabilities. This includes monitoring PurpleOps Solutions and PurpleOps Solutions channels for discussions about exploit development and usage.

Brand leak alerting can also help identify if sensitive data related to your AI models or datasets has been compromised and leaked on the dark web. This information can be crucial for incident response and damage control.

PurpleOps specializes in providing comprehensive cybersecurity solutions, including:

NVIDIA’s DGX Spark vulnerabilities highlight the importance of continuous monitoring and proactive security measures. Addressing these flaws promptly and implementing robust security controls can significantly reduce the risk of exploitation and protect valuable AI assets.

To learn more about how PurpleOps can help you protect your organization from cyber threats, visit our website at PurpleOps Platform and PurpleOps Solutions. Contact us at Red Team Operations, , Supply Chain Information Security, Protect Ransomware and Dark Web Monitoring for more information. Take a proactive approach to cybersecurity with our cyber threat intelligence services: Cyber Threat Intelligence.

FAQ

Q: What is CVE-2025-33187?

A: CVE-2025-33187 is a high-severity vulnerability in NVIDIA DGX Spark AI workstations that can lead to remote code execution (RCE) and denial-of-service (DoS) attacks.

Q: What are the potential impacts of exploiting these vulnerabilities?

A: Exploitation can lead to unauthorized access, code execution, data theft, denial-of-service, and privilege escalation.

Q: How can I mitigate these vulnerabilities?

A: The primary remediation step is to install the latest DGX OS OTA0 update, which patches all 14 vulnerabilities. Additionally, restrict access, implement access controls, enable secure boot, monitor system logs, and segment networks.

Q: Why is threat intelligence important in this context?

A: Threat intelligence provides insights into attacker tactics, techniques, and procedures (TTPs), allowing organizations to proactively identify and respond to potential threats.