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

Quick assessment

Affected
n/a onnx
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ONNX是ONNX组织开源的一个机器学习互操作性的开放标准。 ONNX 1.21.x及之前版本存在缓冲区错误漏洞，该漏洞源于onnxruntime组件的onnx/defs/nn/old.cc文件中的convPoolShapeInference_opset19函数存在越界读取问题。

CVSS 4.3 · Medium EPSS 0.43% · P35

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 22

VendorProduct Version RangeStatus
n/a onnx 1.0 affected
1.1 affected
1.2 affected
1.3 affected
1.4 affected
1.5 affected
1.6 affected
1.7 affected
… +14 more rows
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I. Basic Information for CVE-2026-14647

Vulnerability Information
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Vulnerability Title
onnx onnxruntime old.cc convPoolShapeInference_opset19 out-of-bounds
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
ONNX 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ONNX是ONNX组织开源的一个机器学习互操作性的开放标准。 ONNX 1.21.x及之前版本存在缓冲区错误漏洞，该漏洞源于onnxruntime组件的onnx/defs/nn/old.cc文件中的convPoolShapeInference_opset19函数存在越界读取问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- onnx 1.0 cpe:2.3:a:onnx:onnx:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-14647

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III. Intelligence Information for CVE-2026-14647

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Patches & Fixes for CVE-2026-14647 (1)

Vendor Pages for CVE-2026-14647 (1)

Other References for CVE-2026-14647 (1)

Same Patch Batch · n/a · 2026-07-04 · 6 CVEs total

CVE-2026-14629 4.3 MEDIUM RT-Thread Parameter lwp_syscall.c sys_ioctl divide by zero
CVE-2026-14618 4.3 MEDIUM Open5GS AMF nnrf-handler.c amf_nnrf_handle_nf_discover denial of service
CVE-2026-14685 3.3 LOW HdrHistogram AbstractHistogram AbstractHistogram.java recordValueWithCount state issue
CVE-2026-14684 3.3 LOW HdrHistogram AbstractHistogram.java memory allocation
CVE-2026-14683 3.3 LOW HdrHistogram AbstractHistogram.java memory allocation

IV. Related Vulnerabilities

Same product: onnx
Same vendor: n/a
Same weakness: CWE-125

V. Comments for CVE-2026-14647

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