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TI-2025-03287 Aliases CVE-2025-3730GHSA-887c-mr87-cxwp

PyTorch LossCTC.cpp torch.nn.functional.ctc_loss denial of service

Priority MEDIUM 55CWE-404Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-404.

Summary

A vulnerability, which was classified as problematic, was found in PyTorch 2.6.0. Affected is the function torch.nn.functional.ctc_loss of the file aten/src/ATen/native/LossCTC.cpp. The manipulation leads to denial of service. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The name of the patch is 46fc5d8e360127361211cb237d5f9eef0223e567. It is recommended to apply a patch to fix this issue. The security policy of the project warns to use unknown models which might establish malicious effects.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00331 26th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix Fixed torch (PyPI): 2.8.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—PyTorch2.6.0—No fix listedCNA
—torch (PyPI)before 2.8.02.8.0Patch availableGHSA-887c-mr87-cxwp
  • PyTorch Vendor— Affected 2.6.0 Fixed in — No fix listed CNA
  • torch (PyPI) Vendor— Affected before 2.8.0 Fixed in 2.8.0 Patch available GHSA-887c-mr87-cxwp

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:linuxfoundation:pytorch:2.6.0:-:*:*:*:python:*:*2.6.0Vulnerablebackstage
  • cpe:2.3:a:linuxfoundation:pytorch:2.6.0:-:*:*:*:python:*:* Versions 2.6.0 Vulnerable ·backstage

Remediation

  • Fix · GHSA-887c-mr87-cxwp torch (PyPI) Fixed in 2.8.0 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-3730
  2. 2026-10-03 Alias added: GHSA-887c-mr87-cxwp

References

Exploit 2

Patch 2

Advisory 1

Other 2

  • TI-2024-32257 In PyTorch <=2.4.1, the RemoteModule has Deserialization RCE. CVSS 3.1CRITICAL 9.8
  • TI-2025-35037 A Name Error occurs in pytorch v2.7.0 when a PyTorch model consists of torch.cummin and… CVSS 3.1HIGH 7.5
  • TI-2025-35034 A syntax error in the component proxy_tensor.py of pytorch v2.7.0 allows attackers to cause a Denial of Service (DoS). CVSS 3.1HIGH 7.5
  • TI-2025-35033 pytorch v2.8.0 was discovered to display unexpected behavior when the components… CVSS 3.1HIGH 7.5
  • TI-2025-35032 An issue in the component torch.linalg.lu of pytorch v2.8.0 allows attackers to cause a… CVSS 3.1HIGH 7.5
  • TI-2025-35038 A buffer overflow occurs in pytorch v2.7.0 when a PyTorch model consists of… CVSS 3.1HIGH 7.5
See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences