How severe is CVE-2025-3121?

CVE-2025-3121 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-3121 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-3121?

CVE-2025-3121 affects Linuxfoundation Pytorch. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-3121?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-3121 have an EU (EUVD) identifier?

Yes. CVE-2025-3121 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15087.

When was CVE-2025-3121 published?

CVE-2025-3121 was published on 2025-04-02 and last updated on 2026-06-17.

CVE-2025-3121

CVE-2025-3121 is a low-severity vulnerability in Linuxfoundation Pytorch with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
CVSS v2: 1.7
CVSS v4: 4.8
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-15087
Weakness: CWE-119
Affected product: Linuxfoundation Pytorch
Published: 2025-04-02
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-3121?: 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.
How severe is CVE-2025-3121?: CVE-2025-3121 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-3121 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-3121?: CVE-2025-3121 affects Linuxfoundation Pytorch. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-3121?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-3121 have an EU (EUVD) identifier?: Yes. CVE-2025-3121 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15087.
When was CVE-2025-3121 published?: CVE-2025-3121 was published on 2025-04-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:linuxfoundation:pytorch:2.6.0:-:*:*:*:python:*:*

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