Out-of-bounds Read via Check-after-use in the USBX HID Report Descriptor Parser

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-96582
StatePUBLISHED
Assignereclipse
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-20 14:17:04 UTC
Updated2026-10-20 19:48:50 UTC
DescriptionA HID report descriptor is a sequence of items, each declaring in its header how many data bytes follow. The USBX host walks that sequence by advancing over each header and parsing the data behind it. The walk checked that an item fitted in the descriptor only **after** it had advanced past the header and parsed the payload, and the item analysis it relied on never measured the declared sizes against the bytes actually received. A HID peripheral returning a short report descriptor therefore drove a heap out-of-bounds read during ordinary enumeration.

Risk And Classification

Primary CVSS: v3.1 4.9 MEDIUM from [email protected]

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

Problem Types: CWE-125 | CWE-1285 | CWE-125 CWE-125 Out-of-bounds Read | CWE-1285 CWE-1285 Improper Validation of Specified Index, Position, or Offset in Input

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.9MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
3.1CNACVSS4.9MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Eclipse Foundation Eclipse ThreadX - USBX affected 6.5.1.202602 custom Not specified
CNA Eclipse Foundation Eclipse ThreadX - USBX unaffected 6.5.2.202603 Not specified

References

ReferenceSourceLinkTags
github.com/eclipse-threadx/usbx/security/advisories/GHSA-f2fv-fqrc-h8jr [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: cipher-creator (en)

CNA: acorn421 (en)

CNA: adawn0106 (en)

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