CVE-2025-4287

What it is

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. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The patch is identified as 5827d2061dcb4acd05ac5f8e65d8693a481ba0f5. It is recommended to apply a patch to fix this issue.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. Limited direct impact.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2025-05-05 20:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 09:32 UTC Last updatedMost recent change to the record

Details

Published

2025-05-05 20:15 UTC

Last modified

2026-06-17 09:32 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-404

Record status

Deferred

Attack profile CVSS 4.0 · 4.8

Attack vector

Local

Complexity

Low

Attack requirements

None

Privileges needed

Low

User interaction

None

Confidentiality

None

Integrity

None

Availability

Low