CVE-2026-61318: Oracle Siebel CRM

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 22.3-26.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Cloud Applications. Successful attacks of this vulnerability can result in takeover of Siebel CRM Cloud Applications. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Affected products

• Oracle Siebel CRM: from 22.3, up to and including 26.6

Published 2026-08-18. Last modified 2026-09-02.