Usbredir: usbredir: unbounded iso_packet_desc[] index in usbredirhost_iso_packet() leads to heap out-of-bounds write
CVSS score
4.1
EPSS probability
%0.1
Risk score
0.0
Published
26 d ago
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Vulnerability description
DayBreach CVE AI Research
CVE-2026-92382 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
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.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-92382 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 4.1 | CVSS V3_1 | MEDIUM | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H | CVE CNA |
| 4.1 | CVSS V31 | MEDIUM | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H | NVD |
| 4.1 | CVSS 3.x | — | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H | Microsoft MSRC |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-92382 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-92382 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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