Description

An issue in WIngs3D v.2.4.1 allows a local attacker to cause a denial of service via a crafted Wavefront OBJ file

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "5.5",
  "pubDate": "2026-09-09T19:17:27.760Z",
  "pubdate": "2026-09-09T19:17:27.760Z",
  "executiveSummary": "A denial of service (DoS) vulnerability exists in Wings3D v.2.4.1 when processing specially crafted Wavefront OBJ files.\nThe vulnerability originates from improper input validation within the application's OBJ file parser, which is susceptible to exploitation when handling malformed data.\nA local attacker can trigger this vulnerability by inducing the application to process a malicious OBJ file, resulting in an application crash or termination.\nThis vulnerability allows an unauthenticated local attacker to disrupt the availability of the Wings3D application.\nNo specific elevated privileges are required for exploitation beyond the capability to interact with the Wings3D interface to initiate an import operation.\nThe risk is primarily localized to the availability of the application process; however, it effectively prevents the user from utilizing the software until it is restarted.",
  "technicalDetails": "The vulnerability resides within the Wavefront OBJ import module of Wings3D v.2.4.1. The root cause is an insecure handling of input data during the parsing of OBJ file geometric or structural definitions.\nSpecifically, the parser fails to properly validate the integrity and structure of the OBJ data, allowing a crafted file to trigger an unhandled exception, integer overflow, or out-of-bounds memory access during the parsing phase.\nWhen Wings3D attempts to load the malicious OBJ file, the parser consumes the crafted input, leading to a state where the application cannot maintain normal execution flow.\nThe attack flow proceeds as follows: 1) The attacker constructs a malformed OBJ file containing unexpected or maliciously formatted geometric data or command headers designed to violate the parser's expected input constraints. 2) The attacker places this file on the local file system. 3) The attacker initiates an import operation within the Wings3D application, directing the software to parse the malicious file. 4) The parser, upon encountering the malformed data, enters an error state that is not properly handled by the application's exception-handling mechanisms. 5) This unhandled error forces the immediate termination of the Wings3D process.\nThe vulnerability is limited to local exploitation, requiring the attacker to have the ability to either drop the file locally or convince a user to load the file through the application's interface.\nThere are no requirements for network access or authentication to exploit this vulnerability, as the impact is strictly confined to the local instance of the software application.\nThe post-exploitation impact is limited to a denial of service for the Wings3D process. The application must be manually restarted to restore functionality. There is no evidence suggesting that this vulnerability facilitates arbitrary code execution or unauthorized data access based on the nature of the crash."
}