CVE-2026-42479
May 1, 2026, 7:16 p.m.
5.5
Medium
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.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Opencascade |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-125
Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | opencascade | open_cascade_technology | / | / | / | / | / | / | / | / |
| a | opencascade | open_cascade_technology | 8.0.0 | beta1 | / | / | / | / | / | / |
| a | opencascade | open_cascade_technology | 8.0.0 | rc1 | / | / | / | / | / | / |
| a | opencascade | open_cascade_technology | 8.0.0 | rc2 | / | / | / | / | / | / |
| a | opencascade | open_cascade_technology | 8.0.0 | rc3 | / | / | / | / | / | / |
| a | opencascade | open_cascade_technology | 8.0.0 | rc4 | / | / | / | / | / | / |
| a | opencascade | open_cascade_technology | 8.0.0 | rc5 | / | / | / | / | / | / |
Tags
CVSS Score
CVSS Data - 3.1
- Attack Vector: LOCAL
- Attack Complexity: LOW
- Privileges Required: NONE
- Scope: UNCHANGED
- Confidentiality Impact: NONE
- Integrity Impact: NONE
- Availability Impact: HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Timeline
Published: May 1, 2026, 3:16 p.m.
Last Modified: May 1, 2026, 7:16 p.m.
Last Modified: May 1, 2026, 7:16 p.m.
Status : Modified
CVE has been marked for Analysis. Normally once in this state the CVE will be analyzed by NVD staff within 24 hours.
More infoSource
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.