What’s Vulnerable › Vulnerabilities

CVE-2023-48693: Azure RTOS ThreadX Remote Code Execution Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-12-05 · updated 2026-06-17
• Weakness: CWE-20

Description

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

• azure-rtos threadx: before 6.3.0 — fixed in 6.3.0
• azure-rtos threadx: before 6.3.0

How to fix

Upgrade to a fixed version: azure-rtos threadx 6.3.0. Check the vendor advisory for mitigations.

References

• https://github.com/azure-rtos/threadx/security/advisories/GHSA-p7w6-62rq-vrf9
• https://github.com/azure-rtos/threadx/security/advisories/GHSA-p7w6-62rq-vrf9

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