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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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:489469b5daa63eac025ae8b44e3c5346f91d63ff6ee804c9f36a79ba8ca4072e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":8.5,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3b66f00158c430708e8f0ee8b4f09c8cc471d928b36e4c1d6e9936f1f635a4ea · sha256:e5007030e0d094f6… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3b66f00158c430708e8f0ee8b4f09c8cc471d928b36e4c1d6e9936f1f635a4ea · sha256:e5007030e0d094f6… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"parseusbs","vendor":"khyrenz","versions":[{"lessThan":"1.9.0","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"1.9.0","versionType":"semver"},{"status":"unaffected","version":"99f05996494e7e41ea0c7e13145ba20eb793e46b","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3b66f00158c430708e8f0ee8b4f09c8cc471d928b36e4c1d6e9936f1f635a4ea · sha256:e5007030e0d094f6… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":8.5,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3b66f00158c430708e8f0ee8b4f09c8cc471d928b36e4c1d6e9936f1f635a4ea · sha256:e5007030e0d094f6… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3b66f00158c430708e8f0ee8b4f09c8cc471d928b36e4c1d6e9936f1f635a4ea · sha256:e5007030e0d094f6… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-78","description":"Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3b66f00158c430708e8f0ee8b4f09c8cc471d928b36e4c1d6e9936f1f635a4ea · sha256:e5007030e0d094f6… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"Patch Commit","tags":["patch"],"url":"https://github.com/khyrenz/parseusbs/commit/99f05996494e7e41ea0c7e13145ba20eb793e46b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3b66f00158c430708e8f0ee8b4f09c8cc471d928b36e4c1d6e9936f1f635a4ea · sha256:e5007030e0d094f6… · /containers/cna/references/1
{"name":"Pull Request","tags":["issue-tracking"],"url":"https://github.com/khyrenz/parseusbs/pull/10"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3b66f00158c430708e8f0ee8b4f09c8cc471d928b36e4c1d6e9936f1f635a4ea · sha256:e5007030e0d094f6… · /containers/cna/references/0
{"name":"Mobasi Sentinel Vulnerability Index","tags":["vendor-advisory"],"url":"https://mobasi.ai/sentinel"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3b66f00158c430708e8f0ee8b4f09c8cc471d928b36e4c1d6e9936f1f635a4ea · sha256:e5007030e0d094f6… · /containers/cna/references/2
{"name":"VulnCheck Advisory: parseusbs < 1.9 Command Injection via Crafted LNK Filename","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/parseusbs-command-injection-via-crafted-lnk-filename"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3b66f00158c430708e8f0ee8b4f09c8cc471d928b36e4c1d6e9936f1f635a4ea · sha256:e5007030e0d094f6… · /containers/cna/references/3

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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