Cloudanix VulnDB

CVE-2026-42627

Medium · 6.2

CVSS

6.2

EPSS

0.2%

Published

May 22, 2026

CISA due date

—

The record

In Arm ArmNN through 2026-03-27, an integer overflow in TensorShape::GetNumElements() in armnn/Tensor.cpp allows a crafted TFLite model file to bypass buffer size validation and trigger a heap-based buffer over-read during model optimization. The overflow occurs when multiplying tensor dimensions using 32-bit unsigned arithmetic without overflow detection, causing GetNumBytes() to return an understated allocation size. During Optimize()->InferOutputShapes(), the BatchToSpaceNdLayer reads beyond the allocated buffer.

Affected packages

Ecosystem Package Introduced Fixed

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