Denial of Service Vulnerability in PyTorch by Meta
CVE-2025-3730

4.8MEDIUM

Key Information:

Vendor

Meta

Status
Pytorch
Vendor
CVE Published:
16 April 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-3730?

A vulnerability has been identified in PyTorch 2.6.0 within the function torch.nn.functional.ctc_loss located in the LossCTC.cpp file. This issue can lead to denial of service under specific conditions and requires local access to exploit. Given the nature of this vulnerability, it is crucial for users to apply the latest patch, referenced as 46fc5d8e360127361211cb237d5f9eef0223e567, to mitigate potential threats, as the exploit has already been made public.

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Affected Version(s)

PyTorch 2.6.0

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-2025-3730 - Proof of Concept

References

https://vuldb.com/?id.305076
vdb-entrytechnical-description
https://vuldb.com/?ctiid.305076
signaturepermissions-required
https://vuldb.com/?submit.553645
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

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