CVE-2023-48316 — Azure RTOS NetX Duo is a TCP/IP network stack designed specifically for deeply e

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 r

01What is this vulnerability?

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 snmp, smtp, ftp and dtls in RTOS v6.2.1 and below. The fixes have been included in NetX Duo release 6.3.0…

02Affected products

Vendor	Product	Versions
azure-rtos	netxduo	< 6.3.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-12-05T00:24:38.924Z
• Last modified: 2024-08-02T21:23:39.510Z

09References

• github.com — https://github.com/azure-rtos/netxduo/security/advisories/GHSA-3cmf-r288-xhwq