Out-of-bounds Read in Vtk

CVE-2026-9535

A out-of-bounds read vulnerability exists in the vtkChacoReader InputGraph2 functionality of vtk (version(s): 9.6.1). A specially crafted chaco can lead to an out-of-bounds read. An attacker can provide a malicious file to trigger this vulnerability.

Vulnerability class: Buffer Overflow

Published .

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

  • Vtk — versions 9.6.1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-9535?
CVE-2026-9535 is a high-severity vulnerability in Vtk, classified under Out-of-bounds Read. CVSS score: 8.2/10. Published 2026-10-29.
How severe is CVE-2026-9535?
High severity. CVSS v3 base score is 8.2 out of 10.