CVE-2026-42480

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-05-01 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

Description

A stack-based out-of-bounds read vulnerability in VrmlData_Scene::ReadLine 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 the quoted-string escape handler uses ptr[++anOffset] without proper bounds checking, which can read past the end of a fixed-size stack buffer.

Weakness Classification (1)

References & Advisories (1)

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.10%
Raw Score 0.000980
Percentile 0.8%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00098
2026-11-12
0.00098
2026-11-10
0.00098
2026-11-09
0.00098
2026-11-08
0.00098

Intelligence Sources

nvd ref →