How severe is CVE-2025-63397?

CVE-2025-63397 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability low.

Is CVE-2025-63397 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-63397?

CVE-2025-63397 affects Oneflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-63397?

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

Does CVE-2025-63397 have an EU (EUVD) identifier?

Yes. CVE-2025-63397 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-50829.

When was CVE-2025-63397 published?

CVE-2025-63397 was published on 2025-11-10 and last updated on 2026-07-05.

CVE-2025-63397

CVE-2025-63397 is a medium-severity vulnerability in Oneflow with a CVSS 3.x base score of 6.5. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-50829
Weakness: CWE-20
Affected product: Oneflow
Published: 2025-11-10
Last modified: 2026-07-05

Description

Improper input validation in OneFlow v0.9.0 allows attackers to cause a segmentation fault via adding a Python sequence to the native code during broadcasting/type conversion.

Frequently asked questions

What is CVE-2025-63397?: Improper input validation in OneFlow v0.9.0 allows attackers to cause a segmentation fault via adding a Python sequence to the native code during broadcasting/type conversion.
How severe is CVE-2025-63397?: CVE-2025-63397 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability low.
Is CVE-2025-63397 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-63397?: CVE-2025-63397 affects Oneflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-63397?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-63397 have an EU (EUVD) identifier?: Yes. CVE-2025-63397 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-50829.
When was CVE-2025-63397 published?: CVE-2025-63397 was published on 2025-11-10 and last updated on 2026-07-05.

References

EU advisories (EUVD)

http://oneflow.com

Affected products (1)

cpe:2.3:a:oneflow:oneflow:0.9.0:*:*:*:*:*:*:*

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