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.
Published: n/a
Score: 4.1 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 18 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
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.
Title usbredir: usbredir: unbounded iso_packet_desc[] index in usbredirhost_iso_packet() leads to heap out-of-bounds write
Weaknesses CWE-787
References
Metrics threat_severity

None

 cvssV3_1

{'score': 4.1, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Subscriptions

No data.

cve-icon MITRE

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cve-icon Vulnrichment

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cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-17T12:20:57Z

Links: CVE-2026-92382 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses