Skip to main content
VulnerabilityPublished Updated

CVE-2026-92382: usbredir · Out-of-bounds Write Flaw Was Found

Affects usbredirSource GCVE Database

0
Compare
Authoritative record:CVE-2026-92382· Medium 4.1

Not known to be exploited · CVSS 4.1 Medium.

Data as of 8 Nov 2026, 23:24 UTC

CVSS 3.1 base score
4.1Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.14.1
EPSS
0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10usbredirpkg:deb/ubuntu/usbredir?arch=source&distro=stonkingOther threatsAffected
  • =0.15.0-1build1
Fixed in–
Ubuntu 26.04 LTSusbredirpkg:deb/ubuntu/usbredir?arch=source&distro=resoluteOther threatsAffected
  • =0.15.0-1
  • =0.15.0-1build1
Fixed in–
Ubuntu 24.04 LTSusbredirpkg:deb/ubuntu/usbredir?arch=source&distro=nobleOther threatsAffected
  • =0.13.0-2
  • =0.13.0-2.1
  • =0.13.0-2.1build1
Fixed in–
Ubuntu 22.04 LTSusbredirpkg:deb/ubuntu/usbredir?arch=source&distro=jammyOther threatsAffected
  • =0.8.0-1build1
  • =0.11.0-2
  • =0.11.0-2build1
Fixed in–
Ubuntu 20.04 LTSusbredirpkg:deb/ubuntu/usbredir?arch=source&distro=focalOther threatsAffected
  • =0.8.0-1
  • =0.8.0-1ubuntu0.1
Fixed in–
Ubuntu 18.04 LTSusbredirpkg:deb/ubuntu/usbredir?arch=source&distro=bionicOther threatsAffected
  • =0.7.1-1
  • =0.7.1-1ubuntu0.18.04.1
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until a fix is available, restrict local high-privilege access to affected systems to reduce risk.

Description

An out-of-bounds write vulnerability exists in usbredir when starting an isochronous OUT stream with a transfer count of 1. This flaw causes the single transfer buffer to remain unsubmitted, allowing writes beyond the packet descriptor array on subsequent packets. The vulnerability affects multiple specific versions of usbredir and has a CVSS score of 4.1, indicating medium severity. Exploitation requires local high privileges and results in high impact on availability without affecting confidentiality or integrity.

References

Community reviews

Loading reviews…