CVE-2025-33234: NVIDIA runx RCE Vulnerability

CVE-2025-33234 Overview

NVIDIA runx contains a command injection vulnerability (CWE-78) where an attacker with local access could inject malicious code into the system. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.

Critical Impact

Local attackers could leverage this command injection vulnerability to execute arbitrary code, escalate privileges, and compromise the confidentiality, integrity, and availability of affected systems running NVIDIA runx.

Affected Products

• NVIDIA runx (specific versions to be confirmed via vendor advisory)

Discovery Timeline

• 2026-01-27 - CVE-2025-33234 published to NVD
• 2026-01-29 - Last updated in NVD database

Technical Details for CVE-2025-33234

Vulnerability Analysis

This vulnerability is classified as a command injection flaw (CWE-78: Improper Neutralization of Special Elements used in an OS Command). The vulnerability exists within NVIDIA runx, a container runtime component. Command injection vulnerabilities occur when user-controlled input is incorporated into operating system commands without proper sanitization, allowing attackers to inject and execute arbitrary commands.

The local attack vector requires that an attacker has some level of access to the target system. Once exploited, the attacker can achieve complete compromise of confidentiality, integrity, and availability of the affected system, potentially leading to full system takeover through privilege escalation.

Root Cause

The root cause of this vulnerability is improper neutralization of special elements in user-supplied input before that input is used to construct operating system commands. When NVIDIA runx processes certain inputs, it fails to adequately sanitize or validate the data, allowing specially crafted input containing shell metacharacters or command sequences to be interpreted as part of the system command.

Attack Vector

The attack vector is local, meaning the attacker must have some existing access to the system where NVIDIA runx is running. An attacker with low privileges can exploit this vulnerability without requiring user interaction. The attack complexity is low, making it relatively straightforward to exploit once access is obtained.

The exploitation process typically involves:

1. Gaining local access to a system running vulnerable NVIDIA runx
2. Crafting malicious input containing shell metacharacters or command injection payloads
3. Supplying this input to a vulnerable function or interface within runx
4. The injected commands execute with the privileges of the runx process

For detailed technical information, refer to the NVIDIA Security Advisory.

Detection Methods for CVE-2025-33234

Indicators of Compromise

• Unusual process spawning from NVIDIA runx processes, particularly shell invocations
• Unexpected command execution patterns in system logs related to container runtime operations
• Anomalous system calls or file access patterns from runx-related processes
• Evidence of privilege escalation attempts following container operations

Detection Strategies

• Monitor process creation events for suspicious child processes spawned by NVIDIA runx components
• Implement file integrity monitoring on NVIDIA runx binaries and configuration files
• Deploy endpoint detection solutions capable of identifying command injection patterns and shell metacharacter sequences
• Review container runtime logs for anomalous command execution or unexpected parameters

Monitoring Recommendations

• Enable verbose logging for NVIDIA runx and container runtime operations
• Implement security information and event management (SIEM) rules to alert on suspicious command patterns
• Monitor for unusual privilege escalation events on systems running NVIDIA runx
• Establish baseline behavior for runx processes and alert on deviations

How to Mitigate CVE-2025-33234

Immediate Actions Required

• Review the NVIDIA Security Advisory for specific patch information and affected versions
• Inventory all systems running NVIDIA runx and prioritize patching based on exposure
• Restrict local access to systems running vulnerable NVIDIA runx installations to trusted users only
• Apply the principle of least privilege for all users with access to affected systems

Patch Information

NVIDIA has released security guidance for this vulnerability. Administrators should consult the NVIDIA Customer Support Answer for specific patch versions and update instructions. Apply the latest security updates from NVIDIA as soon as they become available for your environment.

Workarounds

• Limit local access to systems running NVIDIA runx to only essential personnel
• Implement strict input validation at application boundaries where possible
• Use security tools to monitor and restrict command execution from runx processes
• Consider network segmentation to limit the impact of potential compromise

# Example: Restrict access to NVIDIA runx executables
# Ensure only authorized users can execute runx binaries
chmod 750 /path/to/nvidia/runx
chown root:nvidia-admins /path/to/nvidia/runx

# Monitor runx process activity
auditctl -w /path/to/nvidia/runx -p x -k nvidia_runx_execution