What is CVE-2026-89203?

CVE-2026-89203 is a medium-severity vulnerability in Siemens Ruggedcom Crossbow, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 4.3/10. Published 2026-10-13.

How severe is CVE-2026-89203?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Siemens Ruggedcom Crossbow

CVE-2026-89203

A vulnerability has been identified in RUGGEDCOM CROSSBOW (All versions < V6.0). Affected devices do not properly restrict access to various database queries, allowing users to retrieve system-wide information that is not intended for their privilege level. This could allow an authenticated attacker to gather sensitive information about the system's infrastructure, including details on all devices, substations, users, and scheduled activities.

Published 2026-10-13 · last modified 2026-10-13.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Siemens Ruggedcom Crossbow

Weakness classification (CWE)

CWE-201 — Insertion of Sensitive Information into Sent Data

References

cert-portal.siemens.com/productcert/html/ssa-508506.html

Frequently asked questions

What is CVE-2026-89203?: CVE-2026-89203 is a medium-severity vulnerability in Siemens Ruggedcom Crossbow, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 4.3/10. Published 2026-10-13.
How severe is CVE-2026-89203?: Medium severity. CVSS v3 base score is 4.3 out of 10.