CVE-2023-48696

Name: CVE-2023-48696
Creator: NVD / NIST
Published: 2023-12-05T01:15:08.877+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.95%

Last modified Jun 17, 2026

CVE-2023-48696 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 expired pointer dereference vulnerabilities in Azure RTOS USBX. EPSS estimates a 0.95% 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 expired pointer dereference vulnerabilities in Azure RTOS USBX. The affected components include components in host class, related to CDC ACM 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

0.95%

56.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Eclipse	Threadx Usbx	< 6.3.0

References

https://github.com/azure-rtos/usbx/security/advisories/GHSA-h733-98hq-f884Third Party Advisory
https://github.com/azure-rtos/usbx/security/advisories/GHSA-h733-98hq-f884Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2023-48696?

How severe is CVE-2023-48696?

CVE-2023-48696 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.

How do I fix CVE-2023-48696?

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-2023-48696?

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

Scan your code now

Source: NVD / NIST