CVE-2026-42476
May 1, 2026, 7:16 p.m.
7.1
High
Description
Two heap-based out-of-bounds read vulnerabilities in the STL ASCII file parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 exist in RWStl_Reader::ReadAscii because buffers returned by Standard_ReadLineBuffer::ReadLine() are not properly length-validated before strncasecmp or direct byte access. User-assisted attackers can trigger these issues by persuading a victim to open a crafted STL file with extremely short lines, resulting in a denial of service or possible information disclosure.
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: HIGH
- Integrity Impact: NONE
- Availability Impact: HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/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.