A critical vulnerability in NVIDIA’s NVDebug tool could allow attackers to gain elevated system access, execute code, or tamper with data.
NVIDIA released a security bulletin on September 8, 2025, reporting three distinct flaws in the NVDebug tool and urging all users to update to version 1.7.0 or later.
Failure to update may expose systems to privilege escalation, denial of service, and sensitive information disclosure.
Nature of the Vulnerabilities
The security update addresses three high-severity flaws in the NVDebug utility. The first flaw (CVE-2025-23342) can allow a user with limited rights to execute code at a higher privilege level.
| CVE ID | Description | Base Score | Severity |
| CVE-2025-23342 | Privilege escalation via NVDebug tool leading to code execution and data tampering | 8.2 | High |
| CVE-2025-23343 | File write vulnerability allowing restricted component tampering | 7.6 | High |
| CVE-2025-23344 | Code execution on host as non-privileged user with privilege escalation | 7.3 | High |
By exploiting this bug, an attacker could run arbitrary commands, cause a denial-of-service condition, or gain access to data that should be protected.
The second flaw (CVE-2025-23343) permits writing files to restricted locations, potentially leading to information leaks and corrupted system components.
The third flaw (CVE-2025-23344) enables code execution on the host as a non-privileged user, but still permits escalation of privileges and data tampering.
All three vulnerabilities share a common risk: if an attacker successfully chains them or targets multiple systems, they could take full control of affected machines or disrupt operations.
NVIDIA rates each flaw as High severity, with base scores ranging from 7.3 to 8.2 on the CVSS v3.1 scale.
Affected Versions and Update Instructions
The flaws impact all NVDebug tool versions prior to 1.7.0 on both x86_64 and arm64-SBSA systems.
To protect against these vulnerabilities, NVIDIA strongly recommends downloading and installing NVDebug version 1.7.0 or later from the NVIDIA Developer Tools repository.
Beyond updating, organizations should maintain best practices for vulnerability management. Regularly subscribing to NVIDIA security bulletins ensures timely alerts for future issues.
Monitoring system logs for unusual activity and restricting access to developer tools can reduce the attack surface.
Should any anomalies appear after the update, contact NVIDIA Product Security or report potential issues via their security page.
Staying current with security updates and implementing layered defenses will help safeguard systems against emerging threats.
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