# Uncontrolled resource consumption in Siemens APOGEE MBC (PPC) (BACnet) and others

CVE record · `CVE-2022-38371`

- **Identifiers:** `CVE-2022-38371`
- **State:** Confirmed
- **Severity:** CVSS 8.7 High
- **Critical:** No
- **CNA:** siemens
- **Weakness (CWE):** [CWE-400](https://cwe.mitre.org/data/definitions/400.html)
- **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md)
- **Technologies:** [Siemens APOGEE MBC (PPC) (BACnet)](https://agentprime.io/advisories/technology/siemens-apogee-mbc-ppc-bacnet.md) · [Siemens APOGEE MBC (PPC) (P2 Ethernet)](https://agentprime.io/advisories/technology/siemens-apogee-mbc-ppc-p2-ethernet.md) · [Siemens APOGEE MEC (PPC) (BACnet)](https://agentprime.io/advisories/technology/siemens-apogee-mec-ppc-bacnet.md) · [Siemens APOGEE MEC (PPC) (P2 Ethernet)](https://agentprime.io/advisories/technology/siemens-apogee-mec-ppc-p2-ethernet.md) · [Siemens APOGEE PXC Compact (BACnet)](https://agentprime.io/advisories/technology/siemens-apogee-pxc-compact-bacnet.md) · [Siemens APOGEE PXC Compact (P2 Ethernet)](https://agentprime.io/advisories/technology/siemens-apogee-pxc-compact-p2-ethernet.md) · [Siemens APOGEE PXC Modular (BACnet)](https://agentprime.io/advisories/technology/siemens-apogee-pxc-modular-bacnet.md) · [Siemens APOGEE PXC Modular (P2 Ethernet)](https://agentprime.io/advisories/technology/siemens-apogee-pxc-modular-p2-ethernet.md) · [Siemens Desigo PXC00-E.D](https://agentprime.io/advisories/technology/siemens-desigo-pxc00-e-d.md) · [Siemens Desigo PXC00-U](https://agentprime.io/advisories/technology/siemens-desigo-pxc00-u.md) · [Siemens Desigo PXC001-E.D](https://agentprime.io/advisories/technology/siemens-desigo-pxc001-e-d.md) · [Siemens Desigo PXC100-E.D](https://agentprime.io/advisories/technology/siemens-desigo-pxc100-e-d.md) · [Siemens Desigo PXC12-E.D](https://agentprime.io/advisories/technology/siemens-desigo-pxc12-e-d.md) · [Siemens Desigo PXC128-U](https://agentprime.io/advisories/technology/siemens-desigo-pxc128-u.md) · [Siemens Desigo PXC200-E.D](https://agentprime.io/advisories/technology/siemens-desigo-pxc200-e-d.md) · [Siemens Desigo PXC22-E.D](https://agentprime.io/advisories/technology/siemens-desigo-pxc22-e-d.md) · [Siemens Desigo PXC22.1-E.D](https://agentprime.io/advisories/technology/siemens-desigo-pxc22-1-e-d.md) · [Siemens Desigo PXC36.1-E.D](https://agentprime.io/advisories/technology/siemens-desigo-pxc36-1-e-d.md) · [Siemens Desigo PXC50-E.D](https://agentprime.io/advisories/technology/siemens-desigo-pxc50-e-d.md) · [Siemens Desigo PXC64-U](https://agentprime.io/advisories/technology/siemens-desigo-pxc64-u.md)
- **Published:** 11 Oct 2022
- **Updated:** 13 May 2025
- **Reviewed by a person:** No

Published by the CVE Program (CNA: siemens) at 11 Oct 2022, 00:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Siemens. Product: APOGEE MBC (PPC) (BACnet).
  - affected: `All versions`
  - Other versions: unknown
- Vendor: Siemens. Product: APOGEE MBC (PPC) (P2 Ethernet).
  - affected: `All versions`
  - Other versions: unknown
- Vendor: Siemens. Product: APOGEE MEC (PPC) (BACnet).
  - affected: `All versions`
  - Other versions: unknown
- Vendor: Siemens. Product: APOGEE MEC (PPC) (P2 Ethernet).
  - affected: `All versions`
  - Other versions: unknown
- Vendor: Siemens. Product: APOGEE PXC Compact (BACnet).
  - affected: `before V3.5.7` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: APOGEE PXC Compact (P2 Ethernet).
  - affected: `before V2.8.21` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: APOGEE PXC Modular (BACnet).
  - affected: `before V3.5.7` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: APOGEE PXC Modular (P2 Ethernet).
  - affected: `before V2.8.21` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXC00-E.D.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXC00-U.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXC001-E.D.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXC100-E.D.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXC12-E.D.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXC128-U.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXC200-E.D.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXC22-E.D.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXC22.1-E.D.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXC36.1-E.D.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXC50-E.D.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXC64-U.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Desigo PXM20-E.
  - affected: `V2.3 to before V6.30.37` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: Nucleus NET for Nucleus PLUS V1.
  - affected: `All versions < V5.2a`
  - Other versions: unknown
- Vendor: Siemens. Product: Nucleus NET for Nucleus PLUS V2.
  - affected: `All versions < V5.4`
  - Other versions: unknown
- Vendor: Siemens. Product: Nucleus ReadyStart V3 V2012.
  - affected: `All versions < V2012.08.1`
  - Other versions: unknown
- Vendor: Siemens. Product: Nucleus ReadyStart V3 V2017.
  - affected: `All versions < V2017.02.4`
  - Other versions: unknown
- Vendor: Siemens. Product: Nucleus Source Code.
  - affected: `before *` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: TALON TC Compact (BACnet).
  - affected: `before V3.5.7` (custom)
  - Other versions: unknown
- Vendor: Siemens. Product: TALON TC Modular (BACnet).
  - affected: `before V3.5.7` (custom)
  - Other versions: unknown

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 7.5 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`, from CNA (siemens)
- 8.7 High, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`, from CNA (siemens) (used for this record)

- **CISA KEV:** Not listed.
- **EPSS:** 0.016, the 75th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 11 Oct 2022. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2022-38371](https://www.cve.org/CVERecord?id=CVE-2022-38371)
- [NVD: CVE-2022-38371](https://nvd.nist.gov/vuln/detail/CVE-2022-38371)

### References from the CNA

- <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>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2022-38371>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2022-38371/>. Everything for agents: <https://agentprime.io/llms.txt>.
