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CVE-2023-48695

Azure RTOS USBX Remote Code Execution Vulnerability

Published: Dec 5, 2023Updated: Oct 27, 2025 Sources: CVE List NVDCWE-787
NVD MITRE
7.3CVSSHIGH
EPSS Score
1.2%
Top 35.1%
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 out of bounds write vulnerabilities in Azure RTOS USBX. The affected components include functions/processes in host and device classes, related to CDC ECM and RNDIS 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:CC:HI:HA:N
Exploitability
AV:PAttack Vector
Physical
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-787

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-mwj9-rpph-v8wc
github.com

Timeline

Published
Dec 5, 2023
Last Updated
Oct 27, 2025

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