CVE-2023-48693: Microsoft Azure Rtos Threadx

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Azure RTOS ThreadX is an advanced real-time operating system (RTOS) designed specifically for deeply embedded applications. An attacker can cause arbitrary read and write due to vulnerability in parameter checking mechanism in Azure RTOS ThreadX, which may lead to privilege escalation. The affected components include RTOS ThreadX v6.2.1 and below. The fixes have been included in ThreadX release 6.3.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

• Microsoft Azure Rtos Threadx: before 6.3.0 (fixed in 6.3.0)

Published 2023-12-05. Last modified 2026-06-17.