CVE-2025-4287 | PyTorch 2.6.0+cu124 torch/cuda/nccl.py torch.cuda.nccl.reduce denial of service (Issue 150836)

A vulnerability was found in PyTorch 2.6.0+cu124. It has been rated as problematic. Affected by this issue is the function torch.cuda.nccl.reduce of the file torch/cuda/nccl.py. The manipulation leads to denial of service.

This vulnerability is handled as CVE-2025-4287. It is possible to launch the attack on the local host. Furthermore, there is an exploit available.

It is recommended to apply a patch to fix this issue.