CVE-2026-65127 Overview
CVE-2026-65127 is an information disclosure vulnerability affecting NVIDIA Infrastructure Controller for Linux. The flaw stems from debug information that was not cleared before deployment, allowing a local attacker with high privileges to access sensitive system data. A successful exploit can lead to disclosure of internal system information that may aid further attacks.
The vulnerability is tracked under CWE-1258, which covers exposure of sensitive system information due to uncleared debug data in hardware or firmware components. Exploitation requires local access, high attack complexity, and elevated privileges, limiting the immediate risk profile.
Critical Impact
A local attacker with high privileges can retrieve sensitive system information from NVIDIA Infrastructure Controller for Linux due to residual debug data left in production builds.
Affected Products
- NVIDIA Infrastructure Controller for Linux
- Linux-based deployments running the affected controller software
- Systems where debug artifacts were retained in production builds
Discovery Timeline
- 2026-09-22 - CVE-2026-65127 published to NVD
- 2026-09-22 - Last updated in NVD database
Technical Details for CVE-2026-65127
Vulnerability Analysis
The vulnerability affects the NVIDIA Infrastructure Controller for Linux, a management component used to control infrastructure hardware. The flaw is categorized under CWE-1258, Exposure of Sensitive System Information Due to Uncleared Debug Information.
Debug information typically contains internal state data, memory contents, register values, or diagnostic output intended for development. When this data persists in production builds, attackers with access to the affected system can query or extract it. The disclosed information may include configuration details, memory layout, or other data useful for planning follow-on attacks.
Exploitation requires local access with high privileges. The attack complexity is rated high, indicating that specific conditions must be met to trigger the disclosure. The vulnerability affects confidentiality only, with no impact on integrity or availability.
Root Cause
The root cause is uncleared debug information in the Infrastructure Controller firmware or software. Development builds routinely include diagnostic hooks, verbose logging, or memory-mapped debug registers. If build pipelines fail to strip or gate these artifacts before release, sensitive data becomes accessible in shipped versions.
Attack Vector
An authenticated local attacker with high privileges queries the affected controller interface to read residual debug data. The high attack complexity suggests timing, specific hardware states, or particular query sequences are required. See the NVIDIA Security Bulletin for vendor guidance.
Detection Methods for CVE-2026-65127
Indicators of Compromise
- Unexpected access to NVIDIA Infrastructure Controller debug interfaces or diagnostic endpoints on Linux hosts
- Local user sessions with elevated privileges enumerating controller-specific device files or sysfs entries
- Anomalous read operations against controller memory regions or debug registers
Detection Strategies
- Monitor privileged process activity that interacts with NVIDIA Infrastructure Controller interfaces
- Audit access to controller diagnostic files, device nodes, and management APIs
- Correlate elevated-privilege sessions with unusual controller query patterns
Monitoring Recommendations
- Enable audit logging on Linux systems for access to NVIDIA controller device files and management sockets
- Track privileged command execution against NVIDIA management utilities
- Alert on repeated failed or unusual read operations targeting controller debug endpoints
How to Mitigate CVE-2026-65127
Immediate Actions Required
- Review the NVIDIA Security Update and apply vendor-supplied firmware or software updates for the Infrastructure Controller
- Restrict local high-privilege access on systems running the affected controller
- Audit existing privileged user accounts and remove unnecessary elevated permissions
Patch Information
NVIDIA has published guidance for CVE-2026-65127 in its product security repository. Refer to the GitHub NVIDIA Security Update for affected versions, fixed builds, and installation instructions. Additional details are available on the NVD CVE-2026-65127 record and the CVE.org record.
Workarounds
- Limit local access to systems hosting the NVIDIA Infrastructure Controller until patches are applied
- Enforce least-privilege policies and remove unneeded root or administrative accounts on affected hosts
- Segment management networks and restrict administrative access to trusted operators only
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.