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CVE-2026-96402

USBX PIMA/MTP host class reads past its receive buffer when a device over-reports its object handle count

MEDIUM
5.2
CVSS Score
Published: October 20, 2026 at 02:31 PM UTC
Updated: October 20, 2026 at 07:48 PM UTC
1 product affected across 1 vendorThreadX USBX

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Severity
MEDIUM5.2
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A malicious USB MTP/PTP device can cause the USBX host to read past a heap buffer during ordinary object enumeration, leaking adjacent heap contents to the application or faulting on an unmapped page.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

ThreadX USBX· Eclipse
90%
All versions
Vendor states this is fixed in 6.5.2.202603 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://github.com/eclipse-threadx/usbx/security/advisories/GHSA-2ch9-p8xv-fwp6

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.2MEDIUMeclipse
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-125

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