How severe is CVE-2025-63396?

CVE-2025-63396 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-2025-63396 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-63396?

CVE-2025-63396 primarily affects Linuxfoundation Pytorch. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-63396?

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

Does CVE-2025-63396 have an EU (EUVD) identifier?

Yes. CVE-2025-63396 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-131935.

When was CVE-2025-63396 published?

CVE-2025-63396 was published on 2025-11-12 and last updated on 2026-07-05.

CVE-2025-63396

CVE-2025-63396 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-667.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-131935
Weakness: CWE-667
Affected product: Linuxfoundation Pytorch
Published: 2025-11-12
Last modified: 2026-07-05

Description

An issue was discovered in PyTorch v2.5 and v2.7.1. Omission of profiler.stop() can cause torch.profiler.profile (PythonTracer) to crash or hang during finalization, leading to a Denial of Service (DoS).

Frequently asked questions

What is CVE-2025-63396?: An issue was discovered in PyTorch v2.5 and v2.7.1. Omission of profiler.stop() can cause torch.profiler.profile (PythonTracer) to crash or hang during finalization, leading to a Denial of Service (DoS).
How severe is CVE-2025-63396?: CVE-2025-63396 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-2025-63396 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-63396?: CVE-2025-63396 primarily affects Linuxfoundation Pytorch. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-63396?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-63396 have an EU (EUVD) identifier?: Yes. CVE-2025-63396 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-131935.
When was CVE-2025-63396 published?: CVE-2025-63396 was published on 2025-11-12 and last updated on 2026-07-05.

References

EU advisories (EUVD)

http://pytorch.com

Affected products (2)

cpe:2.3:a:linuxfoundation:pytorch:2.5.0:-:*:*:*:python:*:*
cpe:2.3:a:linuxfoundation:pytorch:2.7.1:-:*:*:*:python:*:*

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