Main Vulnerability Database Vulnerabilities #VU123561

Resource exhaustion in PyTorch - CVE-2025-55551

Published: March 5, 2026

Vulnerability identifier: #VU123561

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-55551

CWE-ID: CWE-400

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion and cause a Denial of Service (DoS) when performing a slice operation.

Affected software

PyTorch
watsonx Code Assistant On Prem

How to mitigate CVE-2025-55551

Install updates from vendor's website.

PyTorch - update to 2.9.0
watsonx Code Assistant On Prem - update to 5.3.1

External References

https://gist.github.com/shaoyuyoung/0e7d2a586297ae9c8ed14d8706749efc
https://github.com/pytorch/pytorch/issues/151401

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