CVE-2026-40029
Received Received - Intake
OS Command Injection in parseusbs parseUSBs.py via Malicious LNK Files

Publication date: 2026-04-08

Last updated on: 2026-04-13

Assigner: VulnCheck

Description
parseusbs before 1.9 contains an OS command injection vulnerability in parseUSBs.py where LNK file paths are passed unsanitized into an os.popen() shell command, allowing arbitrary command execution via crafted .lnk filenames containing shell metacharacters. An attacker can craft a .lnk filename with embedded shell metacharacters that execute arbitrary commands on the forensic examiner's machine during USB artifact parsing.
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Meta Information
Published
2026-04-08
Last Modified
2026-04-13
Generated
2026-06-16
AI Q&A
2026-04-09
EPSS Evaluated
2026-06-15
NVD
CVE-2026-40029
EUVD
EUVD-2026-20769
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
khyrenz parseusbs to 1.9 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
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Executive Summary

The vulnerability exists in parseusbs before version 1.9, specifically in the parseUSBs.py script. It involves an OS command injection where LNK file paths are passed without proper sanitization into an os.popen() shell command. This allows an attacker to craft a .lnk filename containing shell metacharacters that can execute arbitrary commands on the forensic examiner's machine during USB artifact parsing.

Impact Analysis

This vulnerability can lead to arbitrary command execution on the machine running the vulnerable parseusbs software. An attacker can exploit this by crafting malicious .lnk filenames that, when parsed, execute commands with the privileges of the user running the software. This can result in compromise of confidentiality, integrity, and availability of the system.

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