CVE-2026-92382 Usbredir: usbredir: unbounded iso_packet_desc[] index in usbredirhost_iso_packet() leads to heap out-of-bounds write
A heap out-of-bounds write in usbredir allows attackers to execute arbitrary code or escalate privileges via malicious USB traffic.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-92382?
CVE-2026-92382 is a medium-severity memory corruption vulnerability in Red Hat Enterprise Linux 10, published on 21 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-787
Which versions are affected by CVE-2026-92382?
How do I fix CVE-2026-92382?
No fix has been published for CVE-2026-92382 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-92382 being exploited?
There is no known exploitation of CVE-2026-92382 in the wild and no public exploit code.
Sources
Also known as AZL-105338, DEBIAN-CVE-2026-92382, GHSA-xhvc-xfq9-4pmw, UBUNTU-CVE-2026-92382.