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THREATINT
PUBLISHED

CVE-2025-3730

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



Description

EN DE

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.

Es wurde eine Schwachstelle in PyTorch 2.6.0 gefunden. Sie wurde als problematisch eingestuft. Hiervon betroffen ist die Funktion torch.nn.functional.ctc_loss der Datei aten/src/ATen/native/LossCTC.cpp. Mit der Manipulation mit unbekannten Daten kann eine denial of service-Schwachstelle ausgenutzt werden. Der Angriff hat dabei lokal zu erfolgen. Der Exploit steht zur öffentlichen Verfügung. Die wahre Existenz der vermeintlichen Schwachstelle wird zur Zeit in Frage gestellt. Der Patch wird als 46fc5d8e360127361211cb237d5f9eef0223e567 bezeichnet. Als bestmögliche Massnahme wird Patching empfohlen.

Reserved 2025-04-16 | Published 2025-04-16 | Updated 2025-05-22 | Assigner VulDB


MEDIUM: 4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
1.7AV:L/AC:L/Au:S/C:N/I:N/A:P

Problem types

Denial of Service

Timeline

2025-04-16:Advisory disclosed
2025-04-16:VulDB entry created
2025-05-22:VulDB entry last update

Credits

Default436352 (VulDB User) reporter

References

vuldb.com/?id.305076 (VDB-305076 | PyTorch LossCTC.cpp torch.nn.functional.ctc_loss denial of service) vdb-entry technical-description

vuldb.com/?ctiid.305076 (VDB-305076 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.553645 (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/...ommit/46fc5d8e360127361211cb237d5f9eef0223e567 patch

cve.org (CVE-2025-3730)

nvd.nist.gov (CVE-2025-3730)

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