CVE-2025-47759

Code execution via stack overflow in project-file parsing

Published May 19, 2025 · Updated May 19, 2025

Stack-based buffer overflow in Fuji Electric V-SFT 6.2.5.0 and earlier allows attackers to execute code through crafted V7 or V8 files. The VS6ComFile!CV7BaseMap::WriteV7DataToRom function writes file-derived data beyond a stack buffer while parsing the file. Exploitation requires a user to open the file and can disclose information, terminate the application abnormally, or execute arbitrary code.

CVSS severity8.4
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Fuji Electric V-SFT 6.2.5.0 and earlier allows attackers to execute code through crafted V7 or V8 files. The VS6ComFile!CV7BaseMap::WriteV7DataToRom function writes file-derived data beyond a stack buffer while parsing the file. Exploitation requires a user to open the file and can disclose information, terminate the application abnormally, or execute arbitrary code.

The record

CVE
CVE-2025-47759
Published
May 19, 2025
Updated
May 19, 2025
Vendor
Fuji Electric
Product
V-SFT
Classifications
CWE-121, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 19, 2025CVE publishedPublication date reported by the CVE source.
  2. May 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=v6.2.5.0 and earlier

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Fuji Electric · V-SFTversion=v6.2.5.0 and earlier

Published CVSS scores

8.4JPCERT/CCCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8JPCERT/CCCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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