CVE-2025-33239

7.8

NVIDIA · Megatron Bridge

NVIDIA Megatron Bridge contains a code injection vulnerability within a data merging tutorial, potentially allowing for code execution, privilege escalation, and data tampering.

Executive summary

A code injection vulnerability in NVIDIA Megatron Bridge versions prior to 0.2.2 could allow a local attacker to execute arbitrary code and escalate privileges.

Vulnerability

The software contains an improper control of generation of code vulnerability (CWE-94) within a data merging tutorial component. The vulnerability allows an authenticated local user to inject malicious input, which may lead to arbitrary code execution, privilege escalation, and information disclosure.

Business impact

The potential for unauthorized code execution and privilege escalation poses a significant security risk to the integrity and confidentiality of the host system. Given the CVSS score of 7.8, this vulnerability is classified as high severity, as it enables a local attacker to compromise the underlying system and manipulate sensitive data. Failure to remediate could result in full system takeover or unauthorized access to protected information.

Remediation

Immediate Action: Update NVIDIA Megatron Bridge to version 0.2.2 or later to apply the necessary security fixes provided by the vendor.

Proactive Monitoring: Review system access logs for anomalous behavior and monitor for unexpected process execution patterns that may indicate an exploitation attempt.

Compensating Controls: Restrict local access to the affected environment to trusted users only and ensure that the principle of least privilege is strictly enforced to limit the impact of potential local exploitation.

Exploitation status

Public Exploit Available: No — no confirmed public exploit exists.

Analyst recommendation

The vulnerability in NVIDIA Megatron Bridge represents a critical security risk due to the potential for code execution and privilege escalation. Organizations should prioritize updating to version 0.2.2 immediately to neutralize the threat. Given the high severity of this flaw, regular auditing of local user permissions and system activity is strongly advised to prevent unauthorized exploitation.

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