Dashboard / CVE-2026-42481

CVE-2026-42481

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

Open CASCADE Technology (OCCT) V8_0_0_rc5 contains multiple vulnerabilities in its IGES and STEP file parsers that can be triggered by crafted IGES or STEP files. These issues include an out-of-bounds read in Geom2d_BSplineCurve::EvalD0 during IGES B-spline curve evaluation, an out-of-bounds read in MakeBSplineCurveCommon during STEP B-spline curve construction, and infinite recursion in StepShape_OrientedEdge::EdgeStart when processing a self-referential OrientedEdge entity. Successful exploitation may result in denial of service or unintended memory disclosure.

Weakness Classification (1)

Affected Software (7)

VendorProductVersion
opencascade open_cascade_technology < 7.9.3
opencascade open_cascade_technology 8.0.0
opencascade open_cascade_technology 8.0.0
opencascade open_cascade_technology 8.0.0
opencascade open_cascade_technology 8.0.0
opencascade open_cascade_technology 8.0.0
opencascade open_cascade_technology 8.0.0

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 →

External Links