CVE-2026-42476
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
39/100
Published: 2026-05-01
Modified: 2026-11-11
First seen: 2026-11-11
Status: active
Attack Surface
Low Complexity
No Auth
Conf. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
None
UI:
Required
S:
Unchanged
C:
High
I:
None
A:
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.
Weakness Classification (1)
Affected Software (7)
| Vendor | Product | Version |
|---|---|---|
| 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)
Third Party Advisory