CVE-2026-42479

MEDIUM

Open CASCADE Technology V8_0_0_rc5 - DoS

Title source: llm

Description

An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because coordIndex values from parsed input are used as direct array indices without validation against the size of the coordinate array during geometry processing.

References (1)

Core 1

Core References

https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a

Scores

CVSS v3 5.5

EPSS 0.0010

EPSS Percentile 1.0%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-125

Status published

Products (2)

opencascade/open_cascade_technology 8.0.0 beta1 (6 CPE variants)

opencascade/open_cascade_technology < 7.9.3

Published May 01, 2026

Tracked Since May 01, 2026