CVE catalog

CVE-2025-3730

pytorch: CVE-2025-3730

Severity: Low · CVSS 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Published: Apr 16, 2025, 9:00:17 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.33% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	pytorch	sid	`2.14.1+dfsg-1`	fixed
Debian	pytorch	forky	`2.14.1+dfsg-1`	fixed
Debian	pytorch	trixie	`2.6.0+dfsg-7`	vulnerable
Debian	pytorch	bookworm	`1.13.1+dfsg-4`	vulnerable
PyPI	torch	Not reported	`2.8.0`	fixed
PyPI	torch	Not reported	`2.8.0`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	pytorch	source	sid	`2.12.0+dfsg2-1`	not yet assigned	Not reported	[1103455]
Debian	pytorch	source	forky	`2.12.0+dfsg2-1`	not yet assigned	Not reported	[1103455]
Debian	pytorch	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1103455]
Debian	pytorch	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1103455]
PyPI	torch	PyPI	Not reported	`2.8.0`	Not reported	PYSEC-2026-1970	Not reported
PyPI	torch	PyPI	Not reported	`2.8.0`	Not reported	GHSA-887C-MR87-CXWP	Not reported

[Debian bug #1103455]

Notes

[trixie] pytorch: Minor issue [bookworm] pytorch: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libtorch1.13]Affected
Source package: [pytorch]
Details (2)
- 1.13.1+dfsg-4 · amd64 · bookworm
  Affected
  dsa · pytorch · debian · bookworm; dsa · pytorch · debian · 12
- 1.13.1+dfsg-4 · arm64 · bookworm
  Affected
  dsa · pytorch · debian · bookworm; dsa · pytorch · debian · 12
[libtorch-dev]Affected
Source package: [pytorch]
Details (2)
- 1.13.1+dfsg-4 · amd64 · bookworm
  Affected
  dsa · pytorch · debian · bookworm; dsa · pytorch · debian · 12
- 1.13.1+dfsg-4 · arm64 · bookworm
  Affected
  dsa · pytorch · debian · bookworm; dsa · pytorch · debian · 12
[libtorch-test]Affected
Source package: [pytorch]
Details (2)
- 1.13.1+dfsg-4 · amd64 · bookworm
  Affected
  dsa · pytorch · debian · bookworm; dsa · pytorch · debian · 12
- 1.13.1+dfsg-4 · arm64 · bookworm
  Affected
  dsa · pytorch · debian · bookworm; dsa · pytorch · debian · 12
[python3-torch]Affected
Source package: [pytorch]
Details (2)
- 1.13.1+dfsg-4 · amd64 · bookworm
  Affected
  dsa · pytorch · debian · bookworm; dsa · pytorch · debian · 12
- 1.13.1+dfsg-4 · arm64 · bookworm
  Affected
  dsa · pytorch · debian · bookworm; dsa · pytorch · debian · 12

[Debian 13 (Trixie)]

[libtorch2.6]Affected
Source package: [pytorch]
Details (2)
- 2.6.0+dfsg-7 · amd64 · trixie
  Affected
  dsa · pytorch · debian · 13
- 2.6.0+dfsg-7 · arm64 · trixie
  Affected
  dsa · pytorch · debian · 13
[libtorch-dev]Affected
Source package: [pytorch]
Details (2)
- 2.6.0+dfsg-7 · amd64 · trixie
  Affected
  dsa · pytorch · debian · 13
- 2.6.0+dfsg-7 · arm64 · trixie
  Affected
  dsa · pytorch · debian · 13
[libtorch-test]Affected
Source package: [pytorch]
Details (2)
- 2.6.0+dfsg-7 · amd64 · trixie
  Affected
  dsa · pytorch · debian · 13
- 2.6.0+dfsg-7 · arm64 · trixie
  Affected
  dsa · pytorch · debian · 13
[python3-torch]Affected
Source package: [pytorch]
Details (2)
- 2.6.0+dfsg-7 · amd64 · trixie
  Affected
  dsa · pytorch · debian · 13
- 2.6.0+dfsg-7 · arm64 · trixie
  Affected
  dsa · pytorch · debian · 13

Observed: Oct 24, 2026, 10:54:48 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]