CVE-2025-3121

Name: CVE-2025-3121
Creator: NVD / NIST
Published: 2025-04-02T22:15:21.22+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2025-3121 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. A vulnerability classified as problematic has been found in PyTorch 2.6.0. Affected is the function torch.jit.jit_module_from_flatbuffer. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

A vulnerability classified as problematic has been found in PyTorch 2.6.0. Affected is the function torch.jit.jit_module_from_flatbuffer. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

4.8/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.24%

14.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Linuxfoundation	Pytorch	2.6.0

References

https://github.com/pytorch/pytorch/issues/149800Issue Tracking, Vendor Advisory
https://github.com/pytorch/pytorch/issues/149800#issue-2940240700Issue Tracking, Vendor Advisory
https://vuldb.com/?ctiid.303012Permissions Required, VDB Entry
https://vuldb.com/?id.303012Third Party Advisory, VDB Entry
https://vuldb.com/?submit.525049Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Apr 2, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-3121?

How severe is CVE-2025-3121?

CVE-2025-3121 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2025-3121?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-3121?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST