Multiple High and Critical Severity Flaws Discovered in NVIDIA Transformers4Rec and Nsight Tools

NVIDIA Product Vulnerabilities – Detailed Security Assessment (2025)

Vendor: NVIDIA
Affected Products:

Transformers4Rec
Nsight (Windows)
Nsight (Linux)

The following vulnerabilities impact NVIDIA developer tooling commonly deployed on developer workstations, CI/CD build servers, research systems, and AI/ML environments. Although exploitation generally requires local access, the resulting impact ranges from sensitive data exposure to full system compromise. These flaws are particularly critical in shared environments where multiple users or automation services coexist.

Consolidated CVE Overview

CVE ID	Product	CVSS Score	Severity	Vulnerability Class	Exploitability	Exploit Availability
CVE-2025-33233	Transformers4Rec	7.5	High	Privilege Abuse	Local	No public PoC
CVE-2025-33231	Nsight (Windows)	8.2	High	DLL Hijacking	Local	No public PoC
CVE-2025-33230	Nsight (Linux)	7.8	High	Installer Abuse	Local	No public PoC
CVE-2025-33228	Nsight	9.0	Critical	Command Injection	Local	No public PoC

CVE-2025-33233 – Transformers4Rec

Privilege Abuse Resulting in Data Exposure

Vulnerability Description

Improper privilege separation has been identified within Transformers4Rec when handling runtime artifacts, cached data, configuration files, and model-related assets. Files and directories created during training and inference workflows are assigned overly permissive access controls. As a result, unauthorized local users are able to access data that should remain restricted to the executing service or user.

This condition is especially prevalent in shared research systems and multi-user servers where Transformers4Rec is executed under service accounts or shared directories.

Exploitation Scenario

Local access is required. Once access is obtained, sensitive directories created by Transformers4Rec can be enumerated. Training datasets, serialized embeddings, intermediate model states, and environment configuration files may be read or copied. In some cases, cloud service credentials or API tokens embedded in configuration files may also be exposed.

No exploit code is required. Abuse relies entirely on misconfigured permissions.

Potential Impact

Exposure of proprietary or regulated datasets
Leakage of authentication tokens or service credentials
Model poisoning or manipulation risks
Breach of intellectual property

Detection and Monitoring

Relevant Log Sources

Linux audit logs
File integrity monitoring solutions
Application runtime logs

Detection Guidance

Monitoring should be implemented for unauthorized read access to Transformers4Rec working directories.
Alerts should be generated when non-service accounts access model or dataset paths.
Unexpected permission changes on ML pipeline directories should be treated as suspicious.

Example Detection Logic

Detect file read operations
Where path includes transformers4rec directories
And user is not the expected service account

Proof-of-Concept Status

No public proof-of-concept exists. Exploitation remains straightforward using standard file system access and does not require specialized tooling.

Mitigation and Remediation

File permissions should be restricted to the minimum required.
Transformers4Rec workloads should be isolated using dedicated system users or containers.
Official updates should be applied immediately.

Official Patch / Upgrade Link:
https://nvidia.custhelp.com/app/answers/detail/a_id/5553

CVE-2025-33231 – Nsight (Windows)

DLL Hijacking Leading to Privilege Escalation

Vulnerability Description

Nsight for Windows has been found to load dynamic link libraries from insecure search paths. During execution, required DLLs are searched for in directories that may be writable by low-privileged users. This behavior enables DLL hijacking if a malicious library is placed in a location that is searched before the legitimate system directory.

If Nsight is executed by an administrator or elevated user, the injected DLL executes with the same privilege level.

Exploitation Scenario

An attacker with local access places a malicious DLL using the same name as a required dependency in a writable directory. When Nsight is launched, the malicious DLL is loaded automatically. Arbitrary code is then executed with elevated privileges without further user interaction.

Potential Impact

Full system compromise
Installation of persistent malware
Credential harvesting
Lateral movement within enterprise environments

Detection and Monitoring

Relevant Log Sources

Windows Security Event Logs
Sysmon (Image Load events)
Endpoint Detection and Response telemetry

Detection Guidance

Monitoring should focus on DLL load events originating from user-writable directories.
Execution of Nsight followed by unexpected child processes should raise alerts.
Any DLL loaded from temporary or public directories should be investigated.

Suspicious Behavior Example

Nsight.exe loading DLL from:
C:\Users\
C:\Temp\
C:\Public\

Proof-of-Concept Status

No public exploit code has been released. However, DLL hijacking techniques are well-documented and can be reproduced for educational testing in isolated environments.

Mitigation and Remediation

The patched Nsight version should be installed immediately.
DLL Safe Search Mode should be enforced.
Write permissions to application directories should be restricted.

Official Patch / Upgrade Link:
https://nvidia.custhelp.com/app/answers/detail/a_id/5554

CVE-2025-33230 – Nsight (Linux)

Installer Abuse Allowing Privilege Escalation

Vulnerability Description

The Linux installer for Nsight performs privileged operations using scripts that do not sufficiently validate their execution context. Environment variables, script paths, and temporary files can be manipulated prior to installation. When the installer is executed by an administrator, injected commands may run with root privileges.

Exploitation Scenario

An attacker modifies installer-related scripts or influences the execution environment. When the installer is launched with elevated privileges, malicious code is executed as root. This often occurs when installers are run from shared directories or extracted without proper validation.

Potential Impact

Root-level compromise
Installation of backdoors
Tampering with development tooling
Long-term persistence

Detection and Monitoring

Relevant Log Sources

Linux auditd
Installer execution logs
Shell history records

Detection Guidance

Installer execution from non-standard paths should be monitored.
Unexpected script execution as root should trigger alerts.
Changes to installer files prior to execution should be flagged.

Proof-of-Concept Status

No public exploit is available.

Mitigation and Remediation

Only verified installer packages should be used.
Checksums should be validated before execution.
The official fixed installer must be applied.

Official Patch / Upgrade Link:
https://nvidia.custhelp.com/app/answers/detail/a_id/5555

CVE-2025-33228 – Nsight

Command Injection Leading to Arbitrary Code Execution

Vulnerability Description

Nsight improperly sanitizes user-controlled input that is passed to system-level commands. Shell metacharacters are not adequately filtered, allowing injected commands to be executed by the underlying operating system. Depending on execution context, this may occur with elevated privileges.

Exploitation Scenario

Crafted input is supplied through project configuration fields, parameters, or environment variables. When Nsight processes this input, additional shell commands are executed. Arbitrary binaries or scripts may be launched without restriction.

Example Payload (Educational)

project_name="test; whoami > /tmp/nsight_exec"

Potential Impact

Arbitrary code execution
Complete system takeover
Credential theft
Lateral movement

Detection and Monitoring

Relevant Log Sources

Application debug logs
Linux audit logs
Endpoint command-line telemetry

Detection Guidance

Monitoring should focus on unexpected shell execution spawned by Nsight.
Input fields containing shell metacharacters should be flagged.
Any Nsight execution resulting in /bin/sh, /bin/bash, or similar processes should be investigated.

Proof-of-Concept Status

No public PoC has been released. The vulnerability can be validated safely in laboratory environments for defensive research only.

Mitigation and Remediation

Immediate patching is strongly recommended.
Nsight should not be run with elevated privileges unless absolutely required.
Execution should be restricted to trusted users.

Official Patch / Upgrade Link:
https://nvidia.custhelp.com/app/answers/detail/a_id/5556

Final Takeaway

These vulnerabilities highlight the risks associated with developer tooling when deployed in shared or privileged environments. Although external attackers cannot directly exploit these flaws, insider threats, compromised user accounts, and lateral movement scenarios make them highly relevant. Prompt patching, least-privilege enforcement, and behavioral monitoring are essential.