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TI-2026-30762 Aliases CVE-2026-42478GHSA-9mvh-w57g-g5m8

An issue was discovered in VrmlData_IndexedFaceSet::TShape in the VRML V2.0 parser in…

Priority LOW 32CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

An issue was discovered in VrmlData_IndexedFaceSet::TShape in the VRML V2.0 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 malformed VRML input can trigger dereference of a corrupt or unvalidated pointer during shape construction in libTKDEVRML.so.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00219 12th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:a:opencascade:open_cascade_technology:*:*:*:*:*:*:*:*up to 7.9.3VulnerableOpencascade
cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:beta1:*:*:*:*:*:*8.0.0 beta1VulnerableOpencascade
cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc1:*:*:*:*:*:*8.0.0 rc1VulnerableOpencascade
cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc2:*:*:*:*:*:*8.0.0 rc2VulnerableOpencascade
cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc3:*:*:*:*:*:*8.0.0 rc3VulnerableOpencascade
cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc4:*:*:*:*:*:*8.0.0 rc4VulnerableOpencascade
cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc5:*:*:*:*:*:*8.0.0 rc5VulnerableOpencascade
  • cpe:2.3:a:opencascade:open_cascade_technology:*:*:*:*:*:*:*:* Versions up to 7.9.3 Vulnerable ·Opencascade
  • cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:beta1:*:*:*:*:*:* Versions 8.0.0 beta1 Vulnerable ·Opencascade
  • cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc1:*:*:*:*:*:* Versions 8.0.0 rc1 Vulnerable ·Opencascade
  • cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc2:*:*:*:*:*:* Versions 8.0.0 rc2 Vulnerable ·Opencascade
  • cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc3:*:*:*:*:*:* Versions 8.0.0 rc3 Vulnerable ·Opencascade
  • cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc4:*:*:*:*:*:* Versions 8.0.0 rc4 Vulnerable ·Opencascade
  • cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc5:*:*:*:*:*:* Versions 8.0.0 rc5 Vulnerable ·Opencascade

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42478
  2. 2026-10-03 Alias added: GHSA-9mvh-w57g-g5m8

References

Advisory 1

  • TI-2026-30761 A heap-based out-of-bounds read vulnerability in RWObj_Reader::read in the OBJ file… CVSS 3.1HIGH 7.1
  • TI-2026-30760 Two heap-based out-of-bounds read vulnerabilities in the STL ASCII file parser in Open… CVSS 3.1HIGH 7.1
  • TI-2026-30765 Open CASCADE Technology (OCCT) V8_0_0_rc5 contains multiple vulnerabilities in its IGES… CVSS 3.1MEDIUM 5.5
  • TI-2026-30764 A stack-based out-of-bounds read vulnerability in VrmlData_Scene::ReadLine in the VRML… CVSS 3.1MEDIUM 5.5
  • TI-2026-30763 An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser… CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences