CVE-2026-91424: Medium 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. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Deployment as well as unauthorized update, insert or delete access to some of Siebel CRM Deployment accessible data and unauthorized read access to a subset of Siebel CRM Deployment accessible data. CVSS 3.1 Base Score 6.4 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H).
Affected Software
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker needs network access to the affected Siebel CRM Deployment server over HTTP and must have low-level privileges. No user interaction is required, but exploitation is rated as high complexity.
Are all Siebel CRM Deployment installations affected?
The affected supported versions are 17.0 through 26.9. The available information does not state whether a default deployment configuration is affected or identify any configuration-specific prerequisites beyond HTTP network access and low privileges.
What could a successful attacker do?
A successful attack can cause a hang or frequently repeatable complete denial of service. It can also allow unauthorized reading of a subset of accessible data and unauthorized update, insertion, or deletion of some accessible data.