CVE catalog

CVE-2025-4287

pytorch: CVE-2025-4287

Severity: Low · CVSS 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Published: May 5, 2025, 8:00:11 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.19% · Oct 25, 2026

A vulnerability was found in PyTorch 2.6.0+cu124. It has been rated as problematic. Affected by this issue is the function torch.cuda.nccl.reduce of the file torch/cuda/nccl.py. The manipulation leads to denial of service. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The patch is identified as 5827d2061dcb4acd05ac5f8e65d8693a481ba0f5. It is recommended to apply a patch to fix this issue.

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`	vulnerable
Debian	pytorch	forky	`2.14.1+dfsg-1`	vulnerable
Debian	pytorch	trixie	`2.6.0+dfsg-7`	vulnerable
Debian	pytorch	bookworm	`1.13.1+dfsg-4`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	pytorch	source	sid	`(unfixed)`	not yet assigned	Not reported	[1104931]
Debian	pytorch	source	forky	`(unfixed)`	not yet assigned	Not reported	[1104931]
Debian	pytorch	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1104931]
Debian	pytorch	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1104931]

[Debian bug #1104931]

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, 10:35:22 PM UTC

References

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