CVE-2026-92382

medium

EUVD alias: EUVD-2026-84029

Assigned by CNA: redhat

Published 2026-09-21 · Modified 2026-09-22

Discuss on Community Propose mitigation

CVSS v3

4.1

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

4.1

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.

Predictions

Exploit likelihood

41%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2026-92382 NameCVE-2026-92382 Descriptionusbredir: usbredir: unbounded iso_packet_desc[] index in usbredirhost_iso_packet() leads to heap out-of-bounds write SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) Vulnerable and fixed packages The table below lists information on source…

CVE-2026-92382

Name	CVE-2026-92382
Description	usbredir: usbredir: unbounded iso_packet_desc[] index in usbredirhost_iso_packet() leads to heap out-of-bounds write
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
usbredir (PTS)	bookworm	0.13.0-2	vulnerable
	forky, sid, trixie	0.15.0-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
usbredir	source	(unstable)	(unfixed)

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=2535972
check details once Red Hat opens up bugzilla entry

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=2535972check details once Red Hat opens up bugzilla entry

OS impact

Debian Affected 4 releases

Version	Status	Fixed in
trixie	Affected	—
sid	Affected	—
forky	Affected	—
bookworm	Affected	—

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

References

CWEs

CWE-787

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.