CVE-2023-48694
Memory Safety in Eclipse Threadx Usbx ≤ 6.3.0
Raw vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-48694 is a medium-severity Expired Pointer Dereference (CWE-825) vulnerability in Eclipse Threadx Usbx. Its CVSS base score is 6.8 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Junk Data (T1001.001); ranked in the top 29% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
Azure RTOS USBX is a USB host, device, and OTG embedded stack integrated with Azure RTOS ThreadX. Versions 6.2.1 and below contain expired pointer dereference and type confusion vulnerabilities (CWE-825 and CWE-843) in the host stack and host class components. The affected functions relate to device-linked classes including ASIX, Prolific, SWAR, audio, and CDC ECM, and these flaws enable remote code execution.
An attacker can exploit the issues to achieve code execution with high impact on confidentiality, integrity, and availability. The CVSS 3.1 score of 6.8 reflects an attack vector requiring physical access, low attack complexity, and no privileges or user interaction.
The GitHub security advisory for this CVE states that fixes are included in USBX release 6.3.0 and recommends that users upgrade, noting there are no known workarounds. The associated EPSS score has remained flat at a peak of 0.0745 with no material rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-52738
Vulnerability Data
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 and type confusion vulnerabilities in Azure RTOS…
more
USBX. The affected components include functions/processes in host stack and host class, related to device linked classes, ASIX, Prolific, SWAR, audio, CDC ECM 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.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V1.5.2V15.3.5
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Lifecycle management includes secure development and maintenance phases that reduce memory-safety defects.
Vulnerability identification processes can discover use-after-free flaws via scanning or analysis.
Routine patching and replacement can eliminate known instances of expired-pointer bugs.
Secure-development practices directly prevent coding errors such as use-after-free while one CWE contributes only modestly to the full control.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.