CVE-2026-42476

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Summary

CVECVE-2026-42476
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-01 15:16:43 UTC
Updated2026-05-01 17:47:56 UTC
DescriptionTwo 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.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Problem Types: CWE-125 | n/a

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Opencascade Open Cascade Technology 8.0.0 beta1 All All
Application Opencascade Open Cascade Technology 8.0.0 rc1 All All
Application Opencascade Open Cascade Technology 8.0.0 rc2 All All
Application Opencascade Open Cascade Technology 8.0.0 rc3 All All
Application Opencascade Open Cascade Technology 8.0.0 rc4 All All
Application Opencascade Open Cascade Technology 8.0.0 rc5 All All
Application Opencascade Open Cascade Technology All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a [email protected] gist.github.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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