CVE-2026-47473: NVIDIA TensorRT-LLM write-what-where condition

CVE-2026-47473 · Severity: high · CVSS 7.4 · Published 2026-07-14

NVIDIA TensorRT-LLM, a library used to optimize the performance of large language models, contains a security vulnerability. An attacker with local access to the system could potentially modify sensitive data, cause the software to crash, or gain unauthorized access to information. This could disrupt AI-driven services or lead to the corruption of critical business data processed by the model.

Technologies: Nvidia TensorRT-LLM. Vendors: Nvidia.

Quick answers

Is CVE-2026-47473 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-47473 being exploited in the wild.
How severe is CVE-2026-47473?
High severity, with a CVSS score of 7.4, published 14 July 2026.
Which products and versions are affected?
Nvidia TensorRT-LLM v1.3.0 rc16 and earlier.
Is there a fix for CVE-2026-47473?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-47473 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-47473?
Check whether you run Nvidia TensorRT-LLM at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

NVIDIA TensorRT-LLM is affected by a write-what-where condition (CWE-123). The vulnerability allows a local attacker to write arbitrary data to an arbitrary memory location. While the attack complexity is rated as high, a successful exploit could lead to a complete compromise of confidentiality, integrity, and availability (C/I/A). The issue is present in versions up to and including v1.3.0 rc16. Security engineers should monitor for updates from NVIDIA to remediate this memory corruption flaw.

Affected products

  • NVIDIA TensorRT-LLM v1.3.0 rc16 and earlier

Timeline

  • 2026-07-14: disclosed: Initial publication of CVE-2026-47473 by NVIDIA.

References

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