CVE-2023-48691

9.8 criticalEPSS 3.1%

Critical (9.8) in microsoft azure rtos netx duo. EPSS 3.1% chance of exploitation in the next 30 days.

Azure RTOS NetX Duo is a TCP/IP network stack designed specifically for deeply embedded real-time and IoT applications. An attacker can cause an out-of-bounds write in Azure RTOS NETX Duo, that could lead to remote code execution. The affected components include process related to IGMP protocol in RTOS v6.2.1 and below. The fix has been included in NetX Duo release 6.3.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 3.1% chance of exploitation in the next 30 days; higher than 87% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2023-12-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

microsoft:azure_rtos_netx_duo

References

https://github.com/azure-rtos/netxduo/security/advisories/GHSA-fwmg-rj6g-w99p
https://github.com/azure-rtos/netxduo/security/advisories/GHSA-fwmg-rj6g-w99p

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