CVE-2026-47104
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| libusb | libusb | {"endExcluding":"1.0.30"} | 1.0.30 |
References
- https://github.com/libusb/libusb/releases/tag/v1.0.30
- https://github.com/libusb/libusb/issues/1813
- https://github.com/libusb/libusb/pull/1814
- https://github.com/libusb/libusb/commit/578ab76b4c434f8b204137ab6d7310689c7a9704
- https://www.vulncheck.com/advisories/libusb-out-of-bounds-read-in-parse-iad-array
- https://www.suse.com/security/cve/CVE-2026-47104.html
CWEs
CWE-125
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.