CVE-2026-42477

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Summary

CVECVE-2026-42477
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-01 15:16:43 UTC
Updated2026-05-01 17:48:08 UTC
DescriptionA heap-based out-of-bounds read vulnerability in RWObj_Reader::read in the OBJ file parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows user-assisted attackers to cause a denial of service or obtain sensitive information by persuading a victim to open a crafted OBJ file. The issue occurs because Standard_ReadLineBuffer::ReadLine() can return a 1-byte buffer for a minimal OBJ line, and RWObj_Reader::read() calls pushIndices(aLine + 2) without validating the buffer length.

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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