Heap-based buffer overflow in Visualization Toolkit (VTK) - CVE-2026-9536
Published: November 2, 2026
Vulnerability identifier: #VU158592
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-9536
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the vtkWindBladeReader FindVariableOffsets functionality. A remote attacker can use a specially crafted .wind, trigger a heap-based buffer overflow and cause a denial of service condition on the target system.
Affected software
Visualization Toolkit (VTK)
How to mitigate CVE-2026-9536
Install updates from vendor's website.
Visualization Toolkit (VTK) - update to 9.7.1