CVE-2025-51480: Linuxfoundation Onnx

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Path Traversal vulnerability in onnx.external_data_helper.save_external_data in ONNX 1.17.0 allows attackers to overwrite arbitrary files by supplying crafted external_data.location paths containing traversal sequences, bypassing intended directory restrictions.

Affected products

• Linuxfoundation Onnx: version 1.17.0 only

Published 2025-07-22. Last modified 2026-06-17.