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.
CVE-2023-48696
This medium-severity CVE scores 6.7 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 29% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 6.7(medium)
- EPSS
- 57.4%
- KEV
- Not listed
Published
December 5, 2023
Last Modified
June 17, 2026
Advisory Details (1)
Auto-updated Jun 27, 2026Azure RTOS USBX Remote Code Execution Vulnerability · Advisory · eclipse-threadx/usbx · GitHub
https://github.com/azure-rtos/usbx/security/advisories/GHSA-h733-98hq-f884Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 47× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 101 total refreshes for this CVE.
- 2026-07-22 14:06 UTCEPSS rescore
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- 2026-07-15 02:19 UTCOSV refresh
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- 2026-07-06 16:26 UTCEPSS rescore
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- 2026-06-24 06:32 UTCNVD updateCVSS v3 → 9.8 · severity → CRITICAL
- 2026-06-23 21:31 UTCEPSS rescore
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- 2026-06-22 14:24 UTCEPSS rescore
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- 2026-06-10 22:17 UTCEPSS rescore
- 2026-06-10 13:21 UTCEPSS rescore
- 2026-06-09 13:47 UTCOSV refresh
- 2026-06-08 14:16 UTCEPSS rescore
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Same CWE
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Frequently asked(5)
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