critical
9.1
CWE
1284
Advisory Published
Updated

CVE-2021-31345

First published: Tue Nov 09 2021(Updated: )

A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All versions), APOGEE MEC (PPC) (P2 Ethernet) (All versions), APOGEE PXC Compact (BACnet) (All versions < V3.5.4), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.19), APOGEE PXC Modular (BACnet) (All versions < V3.5.4), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.19), Capital VSTAR (All versions with enabled Ethernet options), Desigo PXC00-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC00-U (All versions >= V2.3 and < V6.30.016), Desigo PXC001-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC100-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC12-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC128-U (All versions >= V2.3 and < V6.30.016), Desigo PXC200-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC36.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC50-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC64-U (All versions >= V2.3 and < V6.30.016), Desigo PXM20-E (All versions >= V2.3 and < V6.30.016), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus Source Code (All versions), PLUSCONTROL 1st Gen (All versions), TALON TC Compact (BACnet) (All versions < V3.5.4), TALON TC Modular (BACnet) (All versions < V3.5.4). The total length of an UDP payload (set in the IP header) is unchecked. This may lead to various side effects, including Information Leak and Denial-of-Service conditions, depending on a user-defined applications that runs on top of the UDP protocol. (FSMD-2021-0006)

Credit: productcert@siemens.com productcert@siemens.com

Affected SoftwareAffected VersionHow to fix
Google Android
Siemens Capital Vstar
Siemens Nucleus NET
Siemens Nucleus ReadyStart v3<2014.12
Siemens Nucleus Source Code
Siemens Apogee Modular Building Controller Firmware
Siemens Apogee Modular Building Controller
Siemens Apogee Modular Equiment Controller Firmware
Siemens Apogee Modular Equiment Controller
Siemens Apogee Pxc Compact Firmware
Siemens Apogee Pxc Compact
Siemens Apogee Pxc Modular Firmware
Siemens Apogee Pxc Modular
Siemens Talon Tc Compact Firmware
Siemens Talon Tc Compact
Siemens Talon Tc Modular Firmware
Siemens Talon Tc Modular
All of
Siemens Apogee Modular Building Controller Firmware
Siemens Apogee Modular Building Controller
All of
Siemens Apogee Modular Equiment Controller Firmware
Siemens Apogee Modular Equiment Controller
All of
Siemens Apogee Pxc Compact Firmware
Siemens Apogee Pxc Compact
All of
Siemens Apogee Pxc Modular Firmware
Siemens Apogee Pxc Modular
All of
Siemens Talon Tc Compact Firmware
Siemens Talon Tc Compact
All of
Siemens Talon Tc Modular Firmware
Siemens Talon Tc Modular

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-31345?

    The severity of CVE-2021-31345 is critical with a CVSS score of 9.1.

  • What is the affected software for CVE-2021-31345?

    The affected software for CVE-2021-31345 includes APOGEE MBC (PPC) (BACnet), APOGEE MBC (PPC) (P2 Ethernet), APOGEE MEC (PPC) (BACnet), APOGEE MEC (PPC) (P2 Ethernet), APOGEE PXC Compact (BACnet) (versions < V3.5.4), APOGEE PXC Compact (P2 Etherne), Siemens Capital Vstar, Siemens Nucleus Net, Siemens Nucleus Readystart V3, Siemens Nucleus Source Code, Siemens Apogee Modular Building Controller Firmware, Siemens Apogee Modular Equiment Controller Firmware, Siemens Apogee Pxc Compact Firmware, Siemens Apogee Pxc Modular Firmware, Siemens Talon Tc Compact Firmware, Siemens Talon Tc Modular Firmware, Google Android.

  • How can I fix CVE-2021-31345?

    To fix CVE-2021-31345, it is recommended to apply the necessary security patches or updates provided by Siemens or the respective software vendor.

  • Is Siemens Apogee Modular Building Controller vulnerable to CVE-2021-31345?

    No, Siemens Apogee Modular Building Controller is not vulnerable to CVE-2021-31345.

  • What is the Common Weakness Enumeration (CWE) for CVE-2021-31345?

    The Common Weakness Enumeration (CWE) for CVE-2021-31345 is CWE-1284.

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