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TI-2023-26178 Aliases CVE-2023-48315

Azure RTOS NetX Duo Remote Code Execution Vulnerability

Priority MEDIUM 49CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Azure RTOS NetX Duo is a TCP/IP network stack designed specifically for deeply embedded real-time and IoT applications. An attacker can cause remote code execution due to memory overflow vulnerabilities in Azure RTOS NETX Duo. The affected components include processes/functions related to ftp and sntp in RTOS v6.2.1 and below. The fixes have been included in NetX Duo release 6.3.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03899 90th percentileScored 2026-11-07
Fix Fixed netxduo (azure-rtos): 6.3.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
azure-rtosnetxduobefore 6.3.06.3.0Patch availableCNA
  • netxduo Vendorazure-rtos Affected before 6.3.0 Fixed in 6.3.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:microsoft:azure_rtos_netx_duo:*:*:*:*:*:*:*:*before 6.3.0VulnerableMicrosoft
  • cpe:2.3:o:microsoft:azure_rtos_netx_duo:*:*:*:*:*:*:*:* Versions before 6.3.0 Vulnerable ·Microsoft

Remediation

  • Fix · CNA netxduo (azure-rtos) Fixed in 6.3.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-48315
  2. 2026-10-09 EPSS moved to the 90th–95th percentile

References

Advisory 1

  • TI-2023-26179 Azure RTOS NetX Duo Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2023-26531 Azure RTOS NetX Duo Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2023-26530 Azure RTOS NetX Duo Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences