November 14, 2026

CVE Watchtower

CVE-2025-33255Nvidia Tensorrt Llm Deserialization of Untrusted Data

NVDCVSS scored by psirt@nvidia.com

Vulnerability Summary

NVIDIA TRT-LLM for any platform contains a vulnerability in MPI server, where an attacker could cause an unsafe deserialization. A successful exploit of this vulnerability might lead to code execution, denial of service, data tampering, and information disclosure.
Severity Level
HIGH(7.5)
Published Date
May 20, 2026
Last Modified
Jul 24, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.57%Probability
Root Weakness (CWE)
CWE-502: Deserialization of Untrusted Data β†—
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
CVSS v3.1 Base Metrics — Score 7.5 (HIGH)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Nvidia Tensorrt Llm < 1.2
Patched Versions
  • Nvidia Tensorrt Llm 1.2

What to do

Plan remediation soon. No exploitation is confirmed yet, but the severity is high.

  1. Check whether you run Nvidia Tensorrt Llm and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • May 20, 2026Published
  • Jul 24, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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Related Coverage

External References

Data last checked: Nov 14, 2026 18:32 UTC