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Vulnerability · Published Jul 4, 2026 · Assigned by VulDB

CVE-2026-14647onnx onnxruntime old.cc convPoolShapeInference_opset19 out-of-bounds

Medium 4.3

In plain English

A medium-severity out-of-bounds read in onnx. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.4%top 62.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A weakness has been identified in onnx up to 1.21.x. This vulnerability affects the function convPoolShapeInference_opset19 of the file onnx/defs/nn/old.cc of the component onnxruntime. This manipulation causes out-of-bounds read. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Patch name: a7bf3a0f1d18bb62575236ef6e4944980c40e045. It is recommended to apply a patch to fix this issue.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12onnxno fix listedDEBIAN-CVE-2026-14647
Debian:13onnxno fix listedDEBIAN-CVE-2026-14647
Debian:14onnxno fix listedDEBIAN-CVE-2026-14647
Ubuntu:22.04:LTSonnxno fix listedUBUNTU-CVE-2026-14647
Ubuntu:25.10onnxno fix listedUBUNTU-CVE-2026-14647
Ubuntu:26.04:LTSonnxno fix listedUBUNTU-CVE-2026-14647
Ubuntu:26.10onnxno fix listedUBUNTU-CVE-2026-14647

Affected products (as reported)

VendorProductVersions
n/a onnx 1.01.11.21.31.41.51.61.7

Weakness: CWE-125, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C

References