How severe is CVE-2026-40029?

CVE-2026-40029 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-40029 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40029?

CVE-2026-40029 affects Khyrenz Parseusbs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40029?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-40029 have an EU (EUVD) identifier?

Yes. CVE-2026-40029 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20769.

When was CVE-2026-40029 published?

CVE-2026-40029 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2026-40029

CVE-2026-40029 is a high-severity vulnerability in Khyrenz Parseusbs with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v4: 8.5
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20769
Weakness: CWE-78
Affected product: Khyrenz Parseusbs
Published: 2026-04-08
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-40029?: 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.
How severe is CVE-2026-40029?: CVE-2026-40029 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-40029 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40029?: CVE-2026-40029 affects Khyrenz Parseusbs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40029?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-40029 have an EU (EUVD) identifier?: Yes. CVE-2026-40029 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20769.
When was CVE-2026-40029 published?: CVE-2026-40029 was published on 2026-04-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:khyrenz:parseusbs:*:*:*:*:*:*:*:*

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