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TI-2026-82707 Aliases CVE-2026-9536GHSA-7643-hgrp-qw2p

Heap-based buffer overflow in VTK vtkWindBladeReader

Priority LOW 39CWE-122Published · 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 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

VTK from 9.6.1 is affected in the vtkWindBladeReader FindVariableOffsets function. A heap-based buffer overflow (CWE-122) occurs when a specially crafted .wind file causes writes past the end of a heap buffer. An attacker who provides a malicious file can trigger it without authentication or user interaction, with a high impact on availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

A heap-based buffer overflow vulnerability exists in the vtkWindBladeReader FindVariableOffsets functionality of vtk (version(s): 9.6.1). A specially crafted .wind can lead to a buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00307 23rd 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
Yes
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
vtkvtk9.6.1—No fix listedCNA
  • vtk Vendorvtk Affected 9.6.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for VTK.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-9536
  2. 2026-10-29 Alias added: GHSA-7643-hgrp-qw2p
  3. 2026-10-30 Affected versions changed · Red Hat
  4. 2026-10-30 CVSS score added · Red Hat
  5. 2026-10-30 CISA SSVC decision points changed
  6. 2026-10-30 Priority changed: MEDIUM → LOW

References

Other 2

  • TI-2025-35446 Kitware VTK (Visualization Toolkit) through 9.5.0 contains a heap use-after-free… CVSS 3.1CRITICAL 9.8
  • TI-2025-35445 Kitware VTK (Visualization Toolkit) through 9.5.0 contains a heap buffer overflow… CVSS 3.1HIGH 7.1
  • TI-2026-82706 Out-of-bounds read in vtkChacoReader InputGraph2 in VTK CVSS 3.1HIGH 8.2
  • TI-2026-82709 Invalid pointer dereference in VTK PNG reader causes denial of service CVSS 3.1HIGH 7.5
  • TI-2026-82708 Invalid pointer dereference in VTK PNG reader causes denial of service CVSS 3.1HIGH 7.5
  • TI-2026-82705 Out-of-bounds write in VTK BMP reader can corrupt memory CVSS 3.1HIGH 7.5
See all 10 →

Sources

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