CVE-2026-42627

CVE-2026-42627

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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.

CVSS 6.2 · Moyenne · EPSS 0,1%

Publication

2026-05-22T00:00:00.000Z

Mise à jour

2026-05-26T15:16:51.610Z

Pile logicielle: system

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