PT-2026-36493 · Unknown · Open Cascade Technology

Feng Ning · Published 2026-05-01 · Updated 2026-05-01 · CVE-2026-42480

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Open CASCADE Technology (OCCT) version V8 0 0 rc5

Description A stack-based out-of-bounds read in the VRML parser occurs within the VrmlData Scene::ReadLine() function. The quoted-string escape handler utilizes ptr[++anOffset] without adequate bounds checking, which may lead to reading data beyond the end of a fixed-size stack buffer. This can be exploited by an attacker using a specially crafted VRML file to cause a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-42480

Affected Products

Open Cascade Technology

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-42480 · Security Note
• https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a · Note
• https://twitter.com/VulmonFeeds/status/2050356249133215796 · Twitter Post
• https://twitter.com/infoflowcloud/status/2050255704561193378 · Twitter Post
• https://twitter.com/CVEnew/status/2050254050562597341 · Twitter Post