CVE-2025-4124 in ISPSoft
Summary
by MITRE • 04/30/2025
Delta Electronics ISPSoft version 3.20 is vulnerable to an Out-Of-Bounds Write vulnerability that could allow an attacker to execute arbitrary code when parsing ISP file.
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Analysis
by VulDB Data Team • 04/30/2025
Delta Electronics ISPSoft version 3.20 contains a critical out-of-bounds write vulnerability that presents a significant security risk for industrial control systems and manufacturing environments. This vulnerability falls under the Common Weakness Enumeration category CWE-787, which specifically addresses out-of-bounds write conditions that can lead to arbitrary code execution. The flaw manifests when the software processes ISP files, which are typically used for firmware updates and configuration management in industrial automation contexts. An attacker exploiting this vulnerability could manipulate the parsing logic to write data beyond the allocated memory boundaries, potentially leading to memory corruption that allows for code execution.
The operational impact of this vulnerability extends beyond simple code execution, as it directly affects the integrity and availability of industrial control systems that rely on ISPSoft for device management. In industrial environments where Delta Electronics equipment operates, such as manufacturing plants, process control facilities, and critical infrastructure, this vulnerability could enable attackers to gain unauthorized access to control systems. The attack surface is particularly concerning given that ISP files are commonly used for legitimate firmware updates, making the attack vector more accessible through social engineering or supply chain compromise techniques.
This vulnerability aligns with several tactics described in the MITRE ATT&CK framework, particularly those related to initial access through malicious files and privilege escalation via code execution. The out-of-bounds write condition creates opportunities for attackers to manipulate system behavior through carefully crafted ISP files that trigger the memory corruption. The vulnerability's exploitation potential is heightened by the fact that many industrial environments lack proper network segmentation and endpoint protection, making it easier for attackers to deliver malicious payloads. The security implications are further compounded by the industrial control system environment where system availability and safety are paramount, making any code execution vulnerability potentially catastrophic.
Organizations using Delta Electronics ISPSoft version 3.20 should implement immediate mitigations including network segmentation to isolate industrial control systems from general network access, deploying intrusion detection systems to monitor for suspicious ISP file processing activities, and implementing strict file validation procedures for all ISP files before processing. Additionally, regular security assessments should be conducted to identify and remediate similar vulnerabilities in industrial control system software. The recommended approach includes applying vendor-provided patches as soon as they become available, maintaining detailed inventory of all industrial control system components, and establishing secure firmware update procedures that include digital signature verification. These measures align with industrial cybersecurity frameworks such as NIST Cybersecurity Framework and IEC 62443 standards for protecting industrial control systems from advanced persistent threats.