Is CVE-2026-34447 in the CISA KEV catalog?

No. CVE-2026-34447 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-34447?

CVE-2026-34447 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2026-34447?

CVE-2026-34447 has an EPSS score of 0.25% (16th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-34447?

Upgrade onnx to 1.21.0 or later.

CVE & CISA-KEV Catalog

CVE-2026-34447

MEDIUM

5.5

CVSS v3

NVD

Description

Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to version 1.21.0, there is a symlink traversal vulnerability in external data loading allows reading files outside the model directory. This issue has been patched in version 1.21.0.

CWE-22Path Traversal CWE-61

How to fix

Remediation Available

onnxNVD

Affected:< 1.21.0Fixed in:1.21.0CVE-2026-34447derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploit Intelligence

0.25%probability of exploitation in 30 days

16thpercentile

Low risk: more likely to be exploited than 16% of all known CVEs.

References

Exploit1

github.com

Embed a live status badge for CVE-2026-34447

Markdown

[![CVE-2026-34447](https://tridentstack.com/cve/badge/CVE-2026-34447.svg)](https://tridentstack.com/cve/CVE-2026-34447)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-34447"><img src="https://tridentstack.com/cve/badge/CVE-2026-34447.svg" alt="CVE-2026-34447"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-15.