CVE-2026-107899: Fuji Electric V-SFT out-of-bounds read in macro parameter validation

CVE-2026-107899 · Severity: high · CVSS 7.8 · Published 2026-10-26

V-SFT is software used to program and configure Fuji Electric control systems and human-machine interfaces. An out-of-bounds read vulnerability in the macro parameter validation component allows attackers to trigger information disclosure or arbitrary code execution by opening a specially crafted V7 project file, potentially compromising critical industrial control systems.

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

Quick answers

Is CVE-2026-107899 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-107899 being exploited in the wild.
How severe is CVE-2026-107899?
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-2026-107899?
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-2026-107899 attacked?
It is attacked with local access.
Am I affected by CVE-2026-107899?
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 an out-of-bounds read in VS6EditData!CDataRomErrorCheck::CheckSymbolMacroParam triggered when processing malformed macro parameters in V7 files. Attack requires local access and user interaction to open a crafted file; no authentication is required. An attacker can read out-of-bounds memory to leak sensitive information or exploit the condition to achieve arbitrary code execution with the privileges of the V-SFT process.

Affected products

  • Fuji Electric V-SFT 6.2.11.0 and prior

Timeline

  • 2026-10-26: disclosed

References

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