CVE-2026-83154: Critical severity Oracle Siebel CRM End User vulnerability
Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows unauthenticated attacker with network access via SOAP to compromise Siebel CRM End User. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM End User accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM End User accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
Affected Software
Event History
Frequently Asked Questions
Which deployments are exposed?
Oracle Siebel CRM End User deployments using the Open UI component are affected in supported versions 17.0 through 26.7. Exposure requires network reachability to the SOAP interface.
Does exploitation require credentials or user interaction?
No. The vulnerability is described as easily exploitable by an unauthenticated attacker with network access via SOAP, with no user interaction required.
What could an attacker do after successful exploitation?
An attacker could gain unauthorized access to critical data or all data accessible to Siebel CRM End User. They could also create, delete, or modify critical data or all accessible data.