CVE-2025-50130: Fuji Electric Co., Ltd. / Hakko Electronics Co., Ltd Tellus

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

A heap-based buffer overflow vulnerability exists in VS6Sim.exe contained in V-SFT and TELLUS provided by FUJI ELECTRIC CO., LTD. Opening V9 files or X1 files specially crafted by an attacker on the affected product may lead to arbitrary code execution.

Affected products

• Fuji Electric Co., Ltd. / Hakko Electronics Co., Ltd Tellus: up to and including v4.0.20.0
• Fuji Electric Co., Ltd. / Hakko Electronics Co., Ltd V-Sft-6: up to and including v6.2.5.0

Published 2025-07-08. Last modified 2026-06-17.