Advisory Details

February 4th, 2026

NVIDIA Triton Inference Server EVBufferToJson Uncaught Exception Denial-of-Service Vulnerability

ZDI-26-061
ZDI-CAN-26889

CVE ID CVE-2025-33201
CVSS SCORE 7.5, AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AFFECTED VENDORS NVIDIA
AFFECTED PRODUCTS Triton Inference Server
VULNERABILITY DETAILS

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of NVIDIA Triton Inference Server. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the EVBufferToJson method. The issue results from the lack of proper validation of user-supplied data, which can result in an uncaught exception. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

ADDITIONAL DETAILS NVIDIA has issued an update to correct this vulnerability. More details can be found at:
https://nvidia.custhelp.com/app/answers/detail/a_id/5734
DISCLOSURE TIMELINE
  • 2025-09-19 - Vulnerability reported to vendor
  • 2026-02-04 - Coordinated public release of advisory
  • 2026-02-04 - Advisory Updated
CREDIT Tyler Zars and Rob Blakely of the Technical Debt Collectors
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