CVE-2020-37138: 
10-Strike Network Inventory Explorer vulnerability analysis and mitigation

CVE-2020-37138 is a stack-based buffer overflow vulnerability in 10-Strike Network Inventory Explorer version 9.03, specifically within the application's file import functionality. Attackers can craft a malicious text file with a specially constructed payload to trigger the overflow and bypass Data Execution Prevention (DEP) via a Return-Oriented Programming (ROP) chain, ultimately enabling arbitrary code execution. The vulnerability was formally published on February 5, 2026, and carries a CVSS v3.1 base score of 9.8 (Critical) and a CVSS v4.0 base score of 8.4 (High) (VulnCheck Advisory, Exploit-DB).

The root cause is a stack-based buffer overflow (CWE-121) in the file import parsing routine of 10-Strike Network Inventory Explorer 9.03, where user-supplied data from an imported text file is copied into a fixed-size stack buffer without adequate bounds checking. An attacker crafts a malicious text file with an oversized payload that overwrites the stack, including the Structured Exception Handler (SEH) record, and uses a ROP chain to bypass DEP and redirect execution to attacker-controlled shellcode. The attack requires the victim to import the malicious file using the application, making it a file-based vector. A public exploit is available on Exploit-DB (Exploit-DB, VulnCheck Advisory).

Successful exploitation results in arbitrary code execution with the privileges of the user running 10-Strike Network Inventory Explorer, leading to complete compromise of confidentiality, integrity, and availability on the affected host. An attacker could install malware, exfiltrate sensitive network inventory data, or use the compromised system as a pivot point for lateral movement within the network. Given that Network Inventory Explorer is typically used by IT administrators, the affected systems may have elevated access to network resources, amplifying the potential blast radius (VulnCheck Advisory).

A public proof-of-concept exploit is available on Exploit-DB (EDB-ID 48264), demonstrating the SEH/ROP-based buffer overflow technique (Exploit-DB). There is no current evidence of active in-the-wild exploitation or threat actor attribution. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. The EPSS score is approximately 0.047%, indicating a low probability of exploitation in the near term (VulnCheck Advisory).

1. Reconnaissance: Identify environments running 10-Strike Network Inventory Explorer 9.03, which is typically used by IT administrators for network asset management.
2. Craft malicious file: Create a specially crafted text file with an oversized payload designed to overflow the stack buffer in the file import routine. The payload must include a ROP chain to bypass DEP, leveraging gadgets from application or system DLLs loaded by the process.
3. Overwrite SEH record: Structure the payload so that the overflow overwrites the Structured Exception Handler (SEH) record on the stack, redirecting exception handling to attacker-controlled code.
4. Trigger exception and ROP chain: The malformed file triggers an exception during parsing; the overwritten SEH handler redirects execution through the ROP chain, which disables DEP (e.g., via VirtualProtect) and transfers control to the shellcode.
5. Execute shellcode: The shellcode executes arbitrary commands (e.g., reverse shell, dropper) with the privileges of the application user, achieving full system compromise (Exploit-DB, VulnCheck Advisory).

• File System: Unexpected or unusually large text files presented for import into Network Inventory Explorer; presence of unknown executables or scripts created in the application's working directory or temp folders after a file import event.
• Process: Unusual child processes spawned by the Network Inventory Explorer process (e.g., cmd.exe, powershell.exe, curl.exe) following a file import operation; unexpected network connections initiated by the application process.
• Logs: Application crash logs or Windows Event Log entries (e.g., Event ID 1000/1001) indicating access violations or unhandled exceptions in the Network Inventory Explorer process around the time of a file import.
• Network: Outbound connections from the host running Network Inventory Explorer to unknown external IP addresses, particularly on non-standard ports, shortly after a file import event.

No official vendor patch information has been confirmed for this vulnerability. As immediate risk reduction measures: restrict access to systems running 10-Strike Network Inventory Explorer 9.03 and limit which users can supply files for import; disable or restrict the file import functionality if not operationally required; implement strict file validation and sandboxing for any imported files; run the application with the least privileges necessary; and monitor for suspicious process activity following file import operations. Organizations should check the 10-Strike Software website for any updated versions that may address this issue (VulnCheck Advisory).