Vulnerability in Pytorch
CVE-2025-3730
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 ha…
EPSS: 0.000 (4.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- N/a Pytorch — versions 2.6.0
Weakness classification (CWE)
References
- VDB-305076 | PyTorch LossCTC.cpp torch.nn.functional.ctc_loss denial of service (vdb-entry, technical-description)
- VDB-305076 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #553645 | pytorch pytorch (in torch.nn.functional.ctc_loss) 2.6.0 Denial of Service (third-party-advisory)
- github.com/pytorch/pytorch/issues/150835 (issue-tracking)
- github.com/pytorch/pytorch/pull/150981 (issue-tracking)
- github.com/pytorch/pytorch/issues/150835 (exploit, issue-tracking)
- github.com/timocafe/tewart-pytorch/commit/46fc5d8e360127361211cb237d5f9eef0223e… (patch)
Frequently asked questions
- What is CVE-2025-3730?
- CVE-2025-3730 is a low-severity vulnerability in Pytorch, classified under Improper Resource Shutdown or Release. CVSS score: 3.3/10. Published 2025-04-16.
- How severe is CVE-2025-3730?
- Low severity. CVSS v3 base score is 3.3 out of 10.