CVE-2026-107900: Fuji Electric V-SFT out-of-bounds read in VS6ComFile ItemCheck

CVE-2026-107900 · Severity: high · CVSS 7.8 · Published 2026-10-26

V-SFT is a software tool used by Fuji Electric for controlling programmable logic controllers and human-machine interfaces. An out-of-bounds read vulnerability in the file parser can allow attackers to read sensitive memory or crash the application when a user opens a specially crafted V7 project file, potentially leading to information exposure or arbitrary code execution.

Technologies: Fuji Electric V-SFT. Vendors: Fuji Electric.

Quick answers

Is CVE-2026-107900 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-107900 being exploited in the wild.
How severe is CVE-2026-107900?
High severity, with a CVSS score of 7.8, published 26 October 2026.
Which products and versions are affected?
Fuji Electric V-SFT 6.2.11.0 and prior.
Is there a fix for CVE-2026-107900?
Yes: fixed in V-SFT 6.2.12.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-107900 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-107900?
Check whether you run Fuji Electric V-SFT at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: V-SFT 6.2.12.0

Technical details

The vulnerability is a CWE-125 out-of-bounds read in the VS6ComFile!CCheck::ItemCheck component that occurs when parsing specially crafted V7 files. The attack requires local access and user interaction (opening a malicious file), but no authentication. Successful exploitation may lead to information disclosure or code execution.

Affected products

  • Fuji Electric V-SFT 6.2.11.0 and prior

Timeline

  • 2026-10-26: disclosed
  • 2026-10-26: patched

References

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