CVE-2026-92382
Usbredir: usbredir: unbounded iso_packet_desc[] index in usbredirhost_iso_packet() leads to heap out-of-bounds write
An out-of-bounds write flaw was found in usbredir. Starting an isochronous OUT stream with a transfer count of 1 leaves the stream's single transfer buffer permanently unsubmitted, defeating the bounds check in usbredirhost_iso_packet() and allowing a usbredir peer to write past the end of the packet descriptor array on every subsequent isochronous packet.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
4.1
Usbredir: usbredir: unbounded iso_packet_desc[] index in usbredirhost_iso_packet() leads to heap out-of-bounds write
An out-of-bounds write flaw was found in usbredir. Starting an isochronous OUT stream with a transfer count of 1 leaves the stream's single transfer buffer permanently unsubmitted, defeating the bounds check in usbredirhost_iso_packet() and allowing a usbredir peer to write past the end of the packet descriptor array on every subsequent isochronous packet.
- Record
CVE-2026-92382- CVSS 3.1
- 4.1 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2026-84029
4.1
An out-of-bounds write flaw was found in usbredir. Starting an isochronous OUT stream with a transfer count of 1 leaves the stream's single transfer buffer permanently unsubmitted, defeating the bounds check in usbredirhost_iso_packet() and allowing a usbredir peer to write past the end of the packet descriptor array on every subsequent isochronous packet.
- Record
EUVD-2026-84029- CVSS 3.1
- 4.1 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-xhvc-xfq9-4pmw
4.1
An out-of-bounds write flaw was found in usbredir. Starting an isochronous OUT stream with a...
An out-of-bounds write flaw was found in usbredir. Starting an isochronous OUT stream with a transfer count of 1 leaves the stream's single transfer buffer permanently unsubmitted, defeating the bounds check in usbredirhost_iso_packet() and allowing a usbredir peer to write past the end of the packet descriptor array on every subsequent isochronous packet.
- Record
GHSA-xhvc-xfq9-4pmw- CVSS 3.1
- 4.1 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
NVD
4.1
An out-of-bounds write flaw was found in usbredir. Starting an isochronous OUT stream with a transfer count of 1 leaves the stream's single transfer buffer permanently unsubmitted, defeating the bounds check in usbredirhost_iso_packet() and allowing a usbredir peer to write past the end of the packet descriptor array on every subsequent isochronous packet.
- Record
CVE-2026-92382- CVSS 3.1
- 4.1 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-92382
4.1
An out-of-bounds write flaw was found in usbredir. Starting an isochronous OUT stream with a transfer count of 1 leaves the stream's single transfer buffer permanently unsubmitted, defeating the bounds check in usbredirhost_iso_packet() and allowing a usbredir peer to write past the end of the packet descriptor array on every subsequent isochronous packet.
- Record
DEBIAN-CVE-2026-92382- CVSS 3.1
- 4.1 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-92382
4.1
An out-of-bounds write flaw was found in usbredir. Starting an isochronous OUT stream with a transfer count of 1 leaves the stream's single transfer buffer permanently unsubmitted, defeating the bounds check in usbredirhost_iso_packet() and allowing a usbredir peer to write past the end of the packet descriptor array on every subsequent isochronous packet.
- Record
UBUNTU-CVE-2026-92382- CVSS 3.1
- 4.1 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVAZL-105338 No score
CVE-2026-92382 affecting package usbredir 0.13.0-1
An out-of-bounds write flaw was found in usbredir. Starting an isochronous OUT stream with a transfer count of 1 leaves the stream's single transfer buffer permanently unsubmitted, defeating the bounds check in usbredirhost_iso_packet() and allowing a usbredir peer to write past the end of the packet descriptor array on every subsequent isochronous packet.
- Record
AZL-105338- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
usbredirAzure Linux:3 |
through 0.13.0-1 | None known |
usbredirDebian:12 |
All versions, plus listed versions 0.13.0-20.13.0-2.10.13.0-2.1~exp10.14.0-10.15.0-1 |
None known |
usbredirDebian:13 |
All versions, plus listed versions 0.15.0-1 |
None known |
usbredirDebian:14 |
All versions, plus listed versions 0.15.0-1 |
None known |
usbredirUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 0.6-20.6-2ubuntu10.6-2ubuntu1.10.6-2ubuntu1.1+esm1 |
None known |
usbredirUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 0.7-1ubuntu20.7.1-10.7.1-1ubuntu0.16.04.1~esm1 |
None known |
usbredirUbuntu:18.04:LTS |
All versions, plus listed versions 0.7.1-10.7.1-1ubuntu0.18.04.1 |
None known |
usbredirUbuntu:20.04:LTS |
All versions, plus listed versions 0.8.0-10.8.0-1ubuntu0.1 |
None known |
usbredirUbuntu:22.04:LTS |
All versions, plus listed versions 0.8.0-1build10.11.0-20.11.0-2build1 |
None known |
usbredirUbuntu:24.04:LTS |
All versions, plus listed versions 0.13.0-20.13.0-2.10.13.0-2.1build1 |
None known |
usbredirUbuntu:26.10 |
All versions, plus listed versions 0.15.0-1build1 |
None known |
usbredirUbuntu:26.04:LTS |
All versions, plus listed versions 0.15.0-10.15.0-1build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-92382 is a medium vulnerability (CVSS 4.1) in Red Hat Enterprise Linux 10, published September 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.