Denial of Service Vulnerability in PyTorch for CUDA Functionality
CVE-2025-4287

4.8MEDIUM

Key Information:

Vendor

PyTorch

Status
Pytorch
Vendor
CVE Published:
5 May 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-4287?

A vulnerability has been identified in PyTorch versions starting from 2.6.0 with CUDA 124, specifically within the function torch.cuda.nccl.reduce. This issue can lead to a denial of service on the local host, enabling potential disruptions in functionality. The public disclosure of this exploit raises concerns for users, prompting the necessity for an immediate patch identified as 5827d2061dcb4acd05ac5f8e65d8693a481ba0f5 to mitigate the risk. Users are strongly encouraged to apply the patch as soon as possible to safeguard their systems.

Affected Version(s)

PyTorch 2.6.0+cu124

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-4287 - Proof of Concept

References

https://vuldb.com/?id.307394
vdb-entrytechnical-description
https://vuldb.com/?ctiid.307394
signaturepermissions-required
https://vuldb.com/?submit.553644
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Default436352 (VulDB User)
.