CVE-2021-31885
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), 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 ReadyStart V4 (All versions < V4.1.1), 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). TFTP server application allows for reading the contents of the TFTP memory buffer via sending malformed TFTP commands. (FSMD-2021-0009)
Credit: productcert@siemens.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens Capital Vstar | ||
| Siemens Nucleus NET | ||
| Siemens Nucleus ReadyStart v3 | <2017.02.4 | |
| Siemens Nucleus ReadyStart v4 | <4.1.1 | |
| 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 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-31885?
CVE-2021-31885 is a vulnerability identified in APOGEE MBC (PPC) (BACnet) and other versions of Siemens products.
What is the severity of CVE-2021-31885?
The severity of CVE-2021-31885 is high with a severity value of 7.5.
Which Siemens products are affected by CVE-2021-31885?
Siemens APOGEE MBC (PPC) (BACnet), APOGEE MBC (PPC) (P2 Ethernet), APOGEE MEC (PPC) (BACnet), APOGEE MEC (PPC) (P2 Ethernet), and APOGEE PXC Compact (BACnet) versions prior to V3.5.4 are affected.
How can I fix the vulnerability in Siemens products?
It is recommended to update affected Siemens products to version V3.5.4 or later to fix the vulnerability.
Where can I find more information about CVE-2021-31885?
You can find more information about CVE-2021-31885 in the following references provided by Siemens: [link 1](https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf), [link 2](https://cert-portal.siemens.com/productcert/pdf/ssa-114589.pdf), [link 3](https://cert-portal.siemens.com/productcert/pdf/ssa-845392.pdf).
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- agent/first-publish-date
- collector/nvd-index
- agent/software-canonical-lookup-request
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- agent/weakness
- agent/severity
- agent/softwarecombine
- agent/tags
- agent/description
- agent/event
- collector/mitre-cve
- source/MITRE
- vendor/siemens
- canonical/siemens capital vstar
- canonical/siemens nucleus net
- canonical/siemens nucleus readystart v3
- canonical/siemens nucleus readystart v4
- canonical/siemens nucleus source code
- canonical/siemens apogee modular building controller firmware
- canonical/siemens apogee modular building controller
- canonical/siemens apogee modular equiment controller firmware
- canonical/siemens apogee modular equiment controller
- canonical/siemens apogee pxc compact firmware
- canonical/siemens apogee pxc compact
- canonical/siemens apogee pxc modular firmware
- canonical/siemens apogee pxc modular
- canonical/siemens talon tc compact firmware
- canonical/siemens talon tc compact
- canonical/siemens talon tc modular firmware
- canonical/siemens talon tc modular