CVE-2023-48695

Name: CVE-2023-48695
Creator: NVD / NIST
Published: 2023-12-05T01:15:08.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.23%

Last modified Jun 17, 2026

CVE-2023-48695 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.23%

65.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Eclipse	Threadx Usbx	< 6.3.0

References

https://github.com/azure-rtos/usbx/security/advisories/GHSA-mwj9-rpph-v8wcThird Party Advisory
https://github.com/azure-rtos/usbx/security/advisories/GHSA-mwj9-rpph-v8wcThird Party Advisory

Timeline

Published: Dec 5, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-48695?

How severe is CVE-2023-48695?

CVE-2023-48695 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2023-48695?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-48695?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST