What is CVE-2025-50130?

CVE-2025-50130 is a high-severity vulnerability in Fuji Electric Co., Ltd. / Hakko Electronics Tellus, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2025-07-08.

How severe is CVE-2025-50130?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Fuji Electric Co., Ltd. / Hakko Electronics Tellus

CVE-2025-50130

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.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (9.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Fuji Electric Co., Ltd. / Hakko Electronics Tellus — versions v4.0.20.0 and earlier
Fuji Electric Co., Ltd. / Hakko Electronics V-sft-6 — versions v6.2.5.0 and earlier

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

Frequently asked questions

What is CVE-2025-50130?: CVE-2025-50130 is a high-severity vulnerability in Fuji Electric Co., Ltd. / Hakko Electronics Tellus, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2025-07-08.
How severe is CVE-2025-50130?: High severity. CVSS v3 base score is 7.8 out of 10.