CVE-2025-4287

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.18% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 8.5% of scored records. A rank, not a probability.

NVD base score

4.8 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-05-05 20:00Z1 YR AGO

Last updated

2025-05-06 13:45Z1 YR AGO

Reserved

2025-05-05

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

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

Weaknesses

• CWE-404Improper Resource Shutdown or ReleaseClass

Data version

5.1

Document digest

25906c44f9bd3bba3a73ab073a8fcfd12fccc631e19bb21310a89555e4ce6c1e

• vuldb.comVDB-307394 | PyTorch nccl.py torch.cuda.nccl.reduce denial of servicehttps://vuldb.com/?id.307394vdb-entrytechnical-description
• vuldb.comVDB-307394 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.307394signaturepermissions-required
• vuldb.comSubmit #553644 | pytorch pytorch (in torch.cuda.nccl.reduce) 2.6.0 Denial of Servicehttps://vuldb.com/?submit.553644third-party-advisory
• github.comhttps://github.com/pytorch/pytorch/issues/150836issue-tracking
• github.comhttps://github.com/pytorch/pytorch/pull/150923issue-tracking
• github.comhttps://github.com/pytorch/pytorch/issues/150836#issue-2979097872exploitissue-tracking
• github.comhttps://github.com/Divigroup-RAP/PYTORCH/commit/5827d2061dcb4acd05ac5f8e65d8693a481ba0f5patch