ICSA-21-313-03 · Published 2025-05-06 · View on CISA ICS-CERT ↗

Siemens Nucleus RTOS TCP/IP Stack

CVSS 9.8 CRITICAL

CVEs (13)

CVE-2021-31344 CVE-2021-31345 CVE-2021-31346 CVE-2021-31881 CVE-2021-31882 CVE-2021-31883 CVE-2021-31884 CVE-2021-31885 CVE-2021-31886 CVE-2021-31887 CVE-2021-31888 CVE-2021-31889 CVE-2021-31890

Remediations

Update to the latest version of Nucleus ReadyStart V3 or V4
Contact customer support or your local Nucleus Sales team for mitigation advice
Currently no remediation is planned
Update to V2017.02.4 or later version
Update to V4.1.1 or later version
Contact customer support to receive patch and update information

Affected Vendors

Siemens

Affected Products (4)

Siemens · Nucleus NET vers:all/*

Siemens · Nucleus ReadyStart V3 <V2017.02.4

Siemens · Nucleus ReadyStart V4 <V4.1.1

Siemens · Nucleus Source Code vers:all/*

Affected Sectors

Multiple

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