libusb < 1.0.30 Out-of-Bounds Read in parse_iad_array()_CVE-2026-47104

5.1 / 10

MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Description

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 minus one, causing the bounds check to use the original buffer size instead of the remaining size. Attackers in virtualized environments with USB passthrough can supply crafted descriptors through libusb_get_active_interface_association_descriptors or libusb_get_interface_association_descriptors to read one byte past the end of the malloc allocation, resulting in a denial of service.

Basic Information

ID CVE-2026-47104

Source VulnCheck

Published May 27, 2026 at 13:20

Affected Product

Vendor libusb

Product libusb

Affected Versions libusb libusb 0

CWE Classification

CWE-125

References

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    "published": "2026-05-27T13:20:44.432Z",
    "modified": "2026-05-27T13:20:44.432Z",
    "type": "cve",
    "title": "libusb < 1.0.30 Out-of-Bounds Read in parse_iad_array()",
    "source": "VulnCheck",
    "references": "https://github.com/libusb/libusb/releases/tag/v1.0.30\nhttps://github.com/libusb/libusb/issues/1813\nhttps://github.com/libusb/libusb/pull/1814\nhttps://github.com/libusb/libusb/commit/578ab76b4c434f8b204137ab6d7310689c7a9704\nhttps://www.vulncheck.com/advisories/libusb-out-of-bounds-read-in-parse-iad-array",
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