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Vulnerability record · CVE-2023-48695 · published 5 December 2023

CVE-2023-48695: Eclipse threadx usbx out-of-bounds write vulnerability

Eclipse · Threadx Usbx

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.

9.8 CVSS 3.1 Critical EPSS 1.2% · top 32.3% CWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/azure-rtos/usbx/security/advisories/GHSA-mwj9-rpph-v8wc Third Party Advisory
https://github.com/azure-rtos/usbx/security/advisories/GHSA-mwj9-rpph-v8wc Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-48697Eclipse threadx usbx null pointer dereference vulnerabilityAzure 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 re…EPSS 1.2%9.8CVE-2023-48698Eclipse threadx usbx vulnerabilityAzure 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 re…EPSS 0.93%9.8CVE-2023-48694Eclipse threadx usbx type confusion vulnerabilityAzure 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 re…EPSS 1.3%9.8CVE-2023-48696Eclipse threadx usbx vulnerabilityAzure 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 re…EPSS 0.95%9.8CVE-2022-39293Eclipse threadx usbx vulnerabilityAzure RTOS USBX is a high-performance USB host, device, and on-the-go (OTG) embedded stack, that is fully integrated with Azure RTOS ThreadX. The cas…EPSS 0.72%9.8CVE-2022-36063Eclipse threadx usbx stack-based buffer overflow vulnerabilityAzure RTOS USBx is a USB host, device, and on-the-go (OTG) embedded stack, fully integrated with Azure RTOS ThreadX and available for all Azure RTOS …EPSS 1.7%9.8CVE-2022-29246Eclipse threadx usbx classic buffer overflow vulnerabilityAzure RTOS USBX is a USB host, device, and on-the-go (OTG) embedded stack. Prior to version 6.1.11, he USBX DFU UPLOAD functionality may be utilized …EPSS 2.3%9.8CVE-2022-29223Eclipse threadx usbx classic buffer overflow vulnerabilityAzure RTOS USBX is a USB host, device, and on-the-go (OTG) embedded stack. In versions prior to 6.1.10, an attacker can cause a buffer overflow by pr…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2023-48695), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.