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CVE-2023-48694

Azure RTOS USBX Remote Code Execution Vulnerability

Published: Dec 5, 2023Updated: Oct 27, 2025 Sources: CVE List NVDCWE-825
NVD MITRE
6.8CVSSMEDIUM
EPSS Score
1.3%
Top 32.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

Azure RTOS USBX is a USB host, device, and on-the-go (OTG) embedded stack, that is fully integrated with Azure RTOS ThreadX. An attacker can cause remote code execution due to expired pointer dereference and type confusion vulnerabilities in Azure RTOS USBX. The affected components include functions/processes in host stack and host class, related to device linked classes, ASIX, Prolific, SWAR, audio, CDC ECM in RTOS v6.2.1 and below. The fixes have been included in USBX release 6.3.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS Vector Breakdown

AV:PAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:PAttack Vector
Physical
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-825CWE-843

Affected Products

usbxazure-rtos
Embedded
Operating Systems / rtos-embedded-os
threadx usbxeclipseDevTools & CI
azure-rtoscommercialOperating Systemsaka usbx, netxduo, filex
eclipseoss-projectBEDevTools & CIaka eclipse-foundation

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/azure-rtos/usbx/security/advisories/GHSA-qjw8-7w86-44qj
github.com

Timeline

Published
Dec 5, 2023
Last Updated
Oct 27, 2025

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