CVE-2026-40029 PUBLISHED

parseusbs < 1.9 Command Injection via Crafted LNK Filename

Assigner: VulnCheck
Reserved: 08.04.2026 Published: 08.04.2026 Updated: 08.04.2026

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.

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.5

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS Score: 7.8

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.1

Product Status

Vendor	khyrenz
Product	parseusbs
Versions	Default: unaffected affected from 0 to 1.9 (excl.) Version 1.9 is unaffected Version 99f05996494e7e41ea0c7e13145ba20eb793e46b is unaffected

Credits

Mobasi Security Team finder

References

Problem Types

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (CWE-78) CWE