Buffer overflow in vtk vtkDEMReader via crafted USGS DEM files
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-787 and the CVSS impact.
Summary
The vtkDEMReader ReadProfiles function in vtk 9.6.1 contains a memory corruption flaw (CWE-787). A specially crafted USGS DEM file causes a buffer overflow when it is read. An attacker can supply the malicious file over the network without privileges or user interaction, and the impact is to availability.
Written with Claude Haiku 5.5 from the sources below · 2026-10-30
Description from the CNA
A memory corruption vulnerability exists in the vtkDEMReader ReadProfiles functionality of vtk (version(s): 9.6.1). A specially crafted USGS DEM can lead to a buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
Why it matters now
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
Remediation
The sources list no fixed version for vtk.
Written with Claude Haiku 5.5 from the sources below · 2026-10-30
Vendor assessments
Timeline
- 2026-10-29 Threatist record created from CVE-2026-8822
- 2026-10-29 Alias added: GHSA-h3c7-h65p-r333
- 2026-10-30 Affected versions changed · Red Hat
- 2026-10-30 CVSS score added · Red Hat
- 2026-10-30 CISA SSVC decision points changed
- 2026-10-30 Priority changed: MEDIUM → LOW
References
More vtk vulnerabilities
- 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-2026-82707 Heap-based buffer overflow in VTK vtkWindBladeReader CVSS 3.1HIGH 7.5
Sources
- CVE-2026-8822 · CVE Program
- CVE-2026-8822 · NVD
- FIRST EPSS
- GHSA-h3c7-h65p-r333 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-8822 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences