CVE-2025-33187 Overview
CVE-2025-33187 affects the NVIDIA DGX Spark GB10 platform through a vulnerability in the Secure Root of Trust (SROOT) component. An attacker with existing privileged access can leverage this flaw to reach System-on-Chip (SoC) protected areas that should remain isolated. Successful exploitation can result in code execution, information disclosure, data tampering, denial of service, or further privilege escalation.
The vulnerability is tracked under CWE-269: Improper Privilege Management and requires local access with low-level privileges. NVIDIA has acknowledged the issue in its official support advisory.
Critical Impact
Attackers with privileged local access can breach SoC-protected boundaries on DGX Spark GB10 systems, compromising hardware isolation guarantees used to secure AI workloads.
Affected Products
- NVIDIA DGX Spark (GB10 hardware platform)
- NVIDIA DGX OS
- Systems running vulnerable SROOT firmware components
Discovery Timeline
- 2025-11-25 - CVE-2025-33187 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-33187
Vulnerability Analysis
The vulnerability resides in the SROOT (Secure Root) subsystem of the NVIDIA DGX Spark GB10 platform. SROOT enforces the trust boundary between privileged software and SoC protected memory regions. Improper privilege management within this component allows an authenticated local attacker to cross that boundary.
Once inside the protected region, an attacker can read secrets, tamper with firmware artifacts, or execute code in a higher-privileged context. The impact spans confidentiality, integrity, and availability of the affected system.
Root Cause
The underlying weakness maps to CWE-269: Improper Privilege Management. The SROOT component fails to correctly enforce access restrictions when a caller already holds privileged access on the host. This design gap collapses the separation between the operating system trust domain and the SoC secure enclave, permitting unauthorized reach into hardware-isolated regions.
Attack Vector
Exploitation requires local access to the DGX Spark GB10 system with pre-existing low-level privileges. No user interaction is required, and the attack complexity is low. Because the DGX Spark platform is deployed as a developer-focused AI workstation, plausible attack scenarios include a malicious insider, a compromised administrator account, or a supply-chain adversary with hands-on access. Refer to the NVIDIA Support Response for verified technical parameters.
No public proof-of-concept exploit is available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog at this time.
Detection Methods for CVE-2025-33187
Indicators of Compromise
- Unexpected firmware modifications or SROOT integrity check failures during boot sequences on DGX Spark GB10 systems.
- Anomalous privileged process activity attempting to interact with SoC memory-mapped I/O regions.
- Unauthorized changes to firmware images or bootloader components on DGX OS installations.
Detection Strategies
- Enable and monitor firmware attestation and secure boot measurements to identify tampering with SROOT-protected components.
- Audit privileged account activity on DGX Spark systems for unusual escalation attempts or access to low-level hardware interfaces.
- Deploy endpoint telemetry that captures kernel module loads, driver installations, and direct hardware access syscalls on DGX OS.
Monitoring Recommendations
- Forward DGX OS system logs, dmesg output, and authentication events to a centralized SIEM for correlation.
- Alert on privilege escalation events and unauthorized sudo or root sessions on GB10 hardware.
- Track firmware version drift across the DGX Spark fleet and reconcile against NVIDIA-published baselines.
How to Mitigate CVE-2025-33187
Immediate Actions Required
- Apply the vendor firmware and software updates published in the NVIDIA Security Bulletin as soon as they are available.
- Restrict physical and remote administrative access to DGX Spark GB10 systems to a minimal set of trusted operators.
- Rotate credentials and audit privileged accounts on affected DGX OS installations.
Patch Information
NVIDIA has published guidance and remediation details in its official advisory. Administrators should consult the NVIDIA Support Response for a_id/5720 to identify the fixed firmware and DGX OS versions applicable to their deployment, then schedule updates through standard change management. Verify installations by comparing post-update firmware measurements against NVIDIA-published values.
Workarounds
- Enforce least-privilege access controls and remove unnecessary administrator accounts on DGX OS.
- Isolate DGX Spark systems on segmented management networks to limit lateral movement from compromised hosts.
- Enable secure boot and firmware integrity attestation to detect tampering with SROOT components until patches are applied.
- Monitor for anomalous privileged activity and hardware-level access attempts using endpoint detection tooling.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
