CVE-2023-38653: Tonybybell Gtkwave

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Multiple integer overflow vulnerabilities exist in the VZT vzt_rd_block_vch_decode dict parsing functionality of GTKWave 3.3.115. A specially crafted .vzt file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the integer overflow when num_time_ticks is zero.

Affected products

• Tonybybell Gtkwave: version 3.3.115 only

Published 2024-01-08. Last modified 2026-06-17.