CVE-2026-91445: High severity Oracle Siebel CRM End User vulnerability

Published Oct 20, 2026
·
Updated

Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Communications Panel/Dashboard). Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM End User. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM End User accessible data as well as unauthorized update, insert or delete access to some of Siebel CRM End User accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N).

Affected Software

2 affected components
Oracle Siebel CRM End User>=17.0<=26.9
Oracle Siebel CRM>=17.0<=26.9

Event History

Oct 20, 2026
CVE Published
via MITRE·09:26 PM
Data Sourced
via MITRE·09:26 PM
DescriptionSeverity
Data Sourced
via NVD·10:20 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

Which deployments are exposed?

Oracle Siebel CRM End User deployments using the Communications Panel/Dashboard component are affected in supported versions 17.0 through 26.9. The vulnerable interface is reachable over HTTP.

2

Does exploitation require an account or user interaction?

No. The vulnerability is described as easily exploitable by an unauthenticated attacker with network access via HTTP, with no user interaction required.

3

What access could an attacker gain?

Successful exploitation can expose critical data or all data accessible to Siebel CRM End User. An attacker may also be able to update, insert, or delete some data accessible to the product.

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