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CVE-2024-11796 Fuji Electric CVE debrief

A heap-based buffer overflow vulnerability in Fuji Electric Monitouch V-SFT allows remote attackers to execute arbitrary code when a user opens a malicious V9C file. The flaw stems from insufficient validation of user-supplied data during V9C file parsing, enabling writes beyond allocated buffer boundaries. This vulnerability requires user interaction—specifically, visiting a malicious webpage or opening a crafted file—to trigger exploitation. Successful exploitation grants code execution in the context of the current process, potentially compromising the engineering workstation and adjacent industrial control systems. The vulnerability was disclosed on December 3, 2024, with an updated advisory published on May 6, 2025, confirming vendor remediation.

Vendor
Fuji Electric
Product
Monitouch V-SFT
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2024-12-03
Original CVE updated
2025-05-06
Advisory published
2024-12-03
Advisory updated
2025-05-06

Who should care

Organizations operating Fuji Electric Monitouch HMI systems in manufacturing, energy, water/wastewater, and other industrial sectors. Security teams responsible for OT/ICS asset management, engineering workstation protection, and supply chain security. Incident response teams handling potential compromises of HMI programming environments.

Technical summary

The vulnerability exists in the V9C file parsing routine of Fuji Electric Monitouch V-SFT, a programming software for HMI (Human-Machine Interface) devices. Insufficient bounds checking allows attacker-controlled data to write past the end of an allocated heap buffer. The attack vector is local (AV:L) requiring user interaction (UI:R)—typically achieved through social engineering to entice users into opening malicious V9C project files or visiting compromised websites that trigger file download and open actions. The vulnerability affects V-SFT versions 6.2.3.0 and earlier. CVSS 3.1 score of 7.8 (HIGH) reflects high impacts to confidentiality, integrity, and availability, though the need for user interaction reduces exploitability compared to network-facing vulnerabilities. The vendor released patched version 6.2.6.0 in April 2025.

Defensive priority

HIGH

Recommended defensive actions

  • Upgrade Fuji Electric Monitouch V-SFT to Version 6.2.6.0 or later to remediate this vulnerability
  • Implement application whitelisting to prevent execution of unauthorized V-SFT instances
  • Train operators to recognize and avoid opening unsolicited V9C files or visiting untrusted websites
  • Deploy endpoint detection and response (EDR) solutions on engineering workstations running V-SFT
  • Segment engineering workstations from operational technology (OT) networks to contain potential compromise
  • Review and restrict file transfer mechanisms to prevent introduction of malicious V9C files into the environment

Evidence notes

Vulnerability disclosed via CISA ICS Advisory ICSA-24-338-05 on December 3, 2024. Advisory updated May 6, 2025 to correct typos. Vendor fix (Version 6.2.6.0) released April 2025 as documented in Update A (April 24, 2025). CVSS 3.1 vector confirms local attack vector with user interaction required.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-11796 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-11796

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2024-11796 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-11796

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2024/icsa-24-338-05.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-24-338-05

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ncas/tips/ST04-014

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.