Aug. 8, 2023, midnight |

Siemens ProductCERT Security Advisories cert-portal.siemens.com

APOGEE PXC / TALON TC field panels (BACnet before V3.5.5 and P2 Ethernet before V2.8.20) contain multiple vulnerabilities:



  • CVE-2022-45937: A privilege management vulnerability that could allow low privilege authenticated attackers to gain high privilege access.

  • CVE-2020-28388: Predictable Initial Sequence Numbers in the TCP/IP Stack of Nucleus RTOS (real-time operating system) used by the affected products.

  • Several vulnerabilities in the DNS (domain name service) implementation of Nucleus RTOS.


Siemens has released updates for the affected products and recommends to update to …

access attackers cve ethernet high low management nucleus numbers panels privilege privilege access rtos ssa talon update vulnerabilities vulnerability

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