CVE-2026-89203Network attack vector

Authenticated disclosure via unrestricted database queries

Published Oct 13, 2026 · Updated Oct 13, 2026

Information disclosure in Siemens RUGGEDCOM CROSSBOW allows remote authenticated users to read restricted data via database queries. The supplied source record describes database query access controls that return system-wide information without enforcing the requesting user's privilege level; affected query names and code locations were not retrieved. Exploitation requires authenticated access and exposes device, substation, user, and scheduled-activity details, with no reported ability to modify data or interrupt service.

CVSS severityUnavailable
Unscored
EPSS probability0.29%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Siemens RUGGEDCOM CROSSBOW allows remote authenticated users to read restricted data via database queries. The supplied source record describes database query access controls that return system-wide information without enforcing the requesting user's privilege level; affected query names and code locations were not retrieved. Exploitation requires authenticated access and exposes device, substation, user, and scheduled-activity details, with no reported ability to modify data or interrupt service.

The record

CVE
CVE-2026-89203
Published
Oct 13, 2026
Updated
Oct 13, 2026
Vendor
Siemens
Product
RUGGEDCOM CROSSBOW
Classifications
T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <V6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Siemens · RUGGEDCOM CROSSBOWversion=0 <V6.0

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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