CVE-2026-40029

8.5 highEPSS 0.8%

High (8.5) in khyrenz parseusbs. EPSS 0.8% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

8.5 high

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 3.1

7.8 high

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)
CWE: CWE-78
Published: 2026-04-08
Modified: 2026-07-24
Record from: the NVD, synced 2026-10-19

Affected

khyrenz:parseusbs

References

https://github.com/khyrenz/parseusbs/commit/99f05996494e7e41ea0c7e13145ba20eb793e46b
https://github.com/khyrenz/parseusbs/pull/10
https://mobasi.ai/sentinel
https://www.vulncheck.com/advisories/parseusbs-command-injection-via-crafted-lnk-filename

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