CVE-2025-50130 in V-SFT-6
Summary
by MITRE • 07/08/2025
A heap-based buffer overflow vulnerability exists in VS6Sim.exe contained in V-SFT and TELLUS provided by FUJI ELECTRIC CO., LTD. Opening V9 files or X1 files specially crafted by an attacker on the affected product may lead to arbitrary code execution.
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Analysis
by VulDB Data Team • 07/08/2025
The heap-based buffer overflow vulnerability identified as CVE-2025-50130 resides within the VS6Sim.exe executable component of the V-SFT and TELLUS software suite developed by FUJI ELECTRIC CO., LTD. This vulnerability represents a critical security flaw that can be exploited through the manipulation of specially crafted V9 or X1 files during the normal operation of the affected software. The vulnerability stems from inadequate input validation and memory management practices within the file parsing logic, specifically when processing structured data formats that the software uses to interpret sensor simulation and data acquisition parameters.
The technical implementation of this vulnerability occurs within the heap memory management of the VS6Sim.exe process, where insufficient bounds checking allows an attacker to overwrite adjacent memory locations with malicious data. When the software attempts to parse and load the crafted V9 or X1 files, the buffer overflow condition manifests as the program writes data beyond the allocated heap buffer boundaries. This memory corruption can potentially overwrite critical program variables, function pointers, or return addresses, creating opportunities for arbitrary code execution. The vulnerability aligns with CWE-121 Heap-based Buffer Overflow, which specifically addresses buffer overflows occurring in heap memory regions where dynamic allocation and deallocation processes create complex memory management challenges. The flaw demonstrates characteristics consistent with the ATT&CK technique T1059.007 Command and Scripting Interpreter: PowerShell, as exploitation may require the execution of malicious payloads through command-line interfaces or script-based attack vectors.
The operational impact of this vulnerability extends beyond simple local privilege escalation or denial of service scenarios, as successful exploitation can result in complete system compromise. Attackers can leverage this vulnerability to execute arbitrary code with the privileges of the affected user account, potentially leading to persistent backdoor access, data exfiltration, or further network reconnaissance activities. The vulnerability affects industrial control systems and simulation environments where V-SFT and TELLUS software are deployed for sensor simulation and testing purposes. Organizations utilizing these systems for critical infrastructure monitoring, manufacturing process control, or automated production environments face significant risk exposure, as the compromise of such systems can lead to operational disruptions, safety hazards, or unauthorized access to sensitive industrial processes. The attack surface is particularly concerning given that the vulnerability can be triggered through routine file operations, making it possible for attackers to exploit this flaw through social engineering campaigns or by embedding malicious files in legitimate software distribution channels.
Mitigation strategies for CVE-2025-50130 should prioritize immediate software updates from FUJI ELECTRIC CO., LTD. as the primary defense mechanism, while implementing network-based controls such as file filtering and access restriction policies to prevent unauthorized file execution. Organizations should deploy application whitelisting solutions to restrict execution of untrusted V9 and X1 files, and consider implementing memory protection mechanisms such as DEP and ASLR to make exploitation more difficult. System administrators should monitor for unusual file access patterns or execution of the VS6Sim.exe process with unexpected parameters, and implement regular security assessments of industrial control system environments. The vulnerability also underscores the importance of secure coding practices and regular vulnerability assessments in industrial software development, particularly for components handling external data inputs. Additionally, organizations should maintain comprehensive incident response procedures specifically addressing industrial control system compromises, as the impact of exploitation in these environments can extend beyond traditional information technology concerns into operational technology domains.