Out-of-bounds Read in Libusb
CVE-2026-47104
libusb before version 1.0.30 contains a one-byte out-of-bounds read vulnerability in parse_iad_array() in descriptor.c that allows attackers to trigger a denial of service by supplying a malformed USB descriptor whose bLength equals size m…
Vulnerability class: Buffer Overflow
EPSS: 0.000 (1.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Libusb — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (release-notes, Product, Release Notes)
- disclosure@vulncheck.com (technical-description, Mitigation, Issue Tracking)
- disclosure@vulncheck.com (issue-tracking, Patch, Issue Tracking)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Patch, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-47104?
- CVE-2026-47104 is a medium-severity vulnerability in Libusb, classified under Out-of-bounds Read. CVSS score: 4.0/10. Published 2026-05-27.
- How severe is CVE-2026-47104?
- Medium severity. CVSS v3 base score is 4.0 out of 10.