What is CVE-2023-48696?

CVE-2023-48696 is a medium-severity vulnerability in Azure-Rtos Usbx, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 6.7/10. Published 2023-12-05.

How severe is CVE-2023-48696?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Azure-Rtos Usbx

CVE-2023-48696

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.

Published 2023-12-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (59.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Azure-Rtos Usbx — versions < 6.3.0
Eclipse Threadx Usbx

Weakness classification (CWE)

References

github.com/azure-rtos/usbx/security/advisories/GHSA-h733-98hq-f884 (Third Party Advisory)

Frequently asked questions

What is CVE-2023-48696?: CVE-2023-48696 is a medium-severity vulnerability in Azure-Rtos Usbx, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 6.7/10. Published 2023-12-05.
How severe is CVE-2023-48696?: Medium severity. CVSS v3 base score is 6.7 out of 10.