CVE-2026-70857: High 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 17.0-26.6. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTPS to compromise Siebel CRM End User. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Siebel CRM End User, 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 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 7.7 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
If you cannot patch immediately, mitigate by preventing untrusted network access to Oracle Siebel CRM End User (Open UI) over HTTPS until the affected versions (17.0-26.6) are remediated.
Event History
Frequently Asked Questions
Which deployments are affected?
Oracle Siebel CRM End User deployments using the Open UI component are affected in supported versions 17.0 through 26.6.
What access and conditions does an attacker need?
An attacker needs low-privileged access to Siebel CRM End User and network access over HTTPS. Exploitation is difficult and also requires interaction by a person other than the attacker.
What could a successful attack allow?
A successful attack can allow unauthorized access to, creation of, deletion of, or modification of critical data or all data accessible through Siebel CRM End User. The impact may extend significantly to additional products because the vulnerability has scope change.