CVE-2023-48696: azure-rtos usbx
Vulnerability summary
CVE-2023-48696 is a critical (CVSS 9.8) vulnerability in azure-rtos usbx. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.4% of scored vulnerabilities.
Timeline
- 05-12-2023PublishedVulnerability first disclosed.
- 02-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 2 sources · 1 version- CVE.orgCNA6.7MediumCVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:NDiffers
EPSS trend
Probability
0.95%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
0.00 pp
From 0.95% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-754Improper Check for Unusual or Exceptional ConditionsThe product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.
- CWE-825Expired Pointer DereferenceThe product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.
Affected systems
Azure-rtos1 product
- usbx< 6.3.0
Eclipse1 product
- threadx_usbx< 6.3.0
2 vendors · 2 products
References
1 links- github.com/azure-rtos/usbx/security/advisories/GHSA-h733-98hq-f884X Refsource CONFIRMThird Party Advisory