CVE-2025-2149PyTorch Quantized Sigmoid Module nnq_Sigmoid initialization

Description

A vulnerability was found in PyTorch 2.6.0+cu124. It has been rated as problematic. Affected by this issue is the function nnq_Sigmoid of the component Quantized Sigmoid Module. The manipulation of the argument scale/zero_point leads to improper initialization. The attack needs to be approached locally. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• VDB-299060 | PyTorch Quantized Sigmoid Module nnq_Sigmoid initialization vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
• VDB-299060 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-requiredPermissions RequiredVDB Entry
• Submit #506563 | pytorch 2.6.0+cu124 Inconsistency Between Implementation and Documented Design third-party-advisoryExploitThird Party AdvisoryVDB Entry
• https://github.com/pytorch/pytorch/issues/147818 issue-trackingIssue Tracking
• https://github.com/pytorch/pytorch/issues/147818#issue-2877301660 exploitissue-trackingIssue Tracking