CVE-2026-91437: High severity Oracle Siebel CRM Deployment vulnerability
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Siebel CRM Deployment. While the vulnerability is in Siebel CRM Deployment, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Deployment accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Deployment accessible data. CVSS 3.1 Base Score 8.7 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N).
Affected Software
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker needs high privileges and network access to the affected Siebel CRM Deployment environment over HTTP. No user interaction is required.
Which deployments are affected?
Oracle identifies supported Siebel CRM Deployment versions 17.0 through 26.9 as affected. The provided information does not state whether any particular default configuration avoids exposure.
What could a successful attack allow?
A successful attacker could gain unauthorized access to critical data or all data accessible to Siebel CRM Deployment, and could create, delete, or modify that data. The scope change indicates attacks may also significantly affect additional products.