CVE catalog
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
- Severity
- Medium · CVSS 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.13% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libusb-1.0 | sid | 2:1.0.30-1 | fixed |
| Debian | libusb-1.0 | forky | 2:1.0.30-1 | fixed |
| Debian | libusb-1.0 | trixie | 2:1.0.28-1 | vulnerable |
| Debian | libusb-1.0 | bookworm | 2:1.0.26-1 | vulnerable |
| Cpe | libusb-1.0 | Not reported | Not reported | vulnerable |
| Cpe | libusb | Not reported | 1.0.30 | fixed |
| Cpe | libusb | Not reported | 1.0.30 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libusb-1.0 | source | sid | 2:1.0.30-1 | not yet assigned | Not reported | Not reported |
| Debian | libusb-1.0 | source | forky | 2:1.0.30-1 | not yet assigned | Not reported | Not reported |
| Debian | libusb-1.0 | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | libusb-1.0 | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Cpe | libusb | cpe | Not reported | 1.0.30 | Not reported | Not reported | Not reported |
| Cpe | libusb | cpe | Not reported | 1.0.30 | Not reported | NVD-CVE-2026-47104 | Not reported |
Notes
[trixie] libusb-1.0: Minor issue [bookworm] libusb-1.0: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libusb-1.0-0]Affected
Source package: [libusb-1.0]
Details (2)
2:1.0.26-1· amd64 · bookwormAffected
nvd · libusb-1.0 · debian · bookworm
2:1.0.26-1· arm64 · bookwormAffected
nvd · libusb-1.0 · debian · bookworm
- [libusb-1.0-0-dev]Affected
Source package: [libusb-1.0]
Details (2)
2:1.0.26-1· amd64 · bookwormAffected
nvd · libusb-1.0 · debian · bookworm
2:1.0.26-1· arm64 · bookwormAffected
nvd · libusb-1.0 · debian · bookworm
- [libusb-1.0-doc]Affected
Source package: [libusb-1.0]
Details (2)
2:1.0.26-1· all · bookwormAffected
nvd · libusb-1.0 · debian · bookworm
2:1.0.26-1· all · bookwormAffected
nvd · libusb-1.0 · debian · bookworm
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_23450-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-47104]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-47104]
- [https://security-tracker.debian.org/tracker/CVE-2026-47104]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-47104.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]