CVE-2026-83191: 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 17.0-26.7. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TCP to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in takeover of Siebel CRM Deployment. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
Affected Software
Event History
Frequently Asked Questions
Which deployments are exposed to this issue?
Oracle Siebel CRM Deployment installations using affected supported versions from 17.0 through 26.7 are exposed if an attacker can reach the Server Infrastructure over TCP.
Does exploitation require credentials or user interaction?
No. The vulnerability can be exploited by an unauthenticated attacker with network access via TCP, and it does not require user interaction. Exploitation is described as difficult, with high attack complexity.
What could a successful attack achieve?
A successful attack can result in takeover of Siebel CRM Deployment, with high impact to confidentiality, integrity, and availability.