What is CVE-2025-46149?

CVE-2025-46149 is a medium-severity vulnerability in Linuxfoundation Pytorch, classified under Reachable Assertion. CVSS score: 5.3/10. Published 2025-09-25.

How severe is CVE-2025-46149?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Linuxfoundation Pytorch

CVE-2025-46149

In PyTorch before 2.7.0, when inductor is used, nn.Fold has an assertion error.

Published 2025-09-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.1th percentile), scored 2026-09-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Linuxfoundation Pytorch

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

github.com/pytorch/pytorch/issues/147848 (Issue Tracking)
github.com/pytorch/pytorch/pull/147961 (Patch, Issue Tracking)
gist.github.com/shaoyuyoung/4bcefba4004f8271e64b5185c95a248a (Third Party Advisory)

Frequently asked questions

What is CVE-2025-46149?: CVE-2025-46149 is a medium-severity vulnerability in Linuxfoundation Pytorch, classified under Reachable Assertion. CVSS score: 5.3/10. Published 2025-09-25.
How severe is CVE-2025-46149?: Medium severity. CVSS v3 base score is 5.3 out of 10.