Vulnerability · Published Oct 10, 2025 · Assigned by jpcert
CVE-2025-61856
High 7.8
In plain English
A high-severity stack buffer overflow in V-SFT from FUJI ELECTRIC CO., LTD. / Hakko Electronics Co., Ltd.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 90.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A stack-based buffer overflow vulnerability exists in VS6ComFile!CV7BaseMap::WriteV7DataToRom of V-SFT v6.2.7.0 and earlier. Opening specially crafted V-SFT files may lead to information disclosure, affected system's abnormal end (ABEND), and arbitrary code execution.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| FUJI ELECTRIC CO., LTD. / Hakko Electronics Co., Ltd. | V-SFT | v6.2.7.0 and earlier |
Weakness: CWE-121 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H