Vulnerability in Oracle Corporation Siebel Apps - Self Service
CVE-2026-70855
Vulnerability in the Siebel Apps - Self Service product of Oracle Siebel CRM (component: Helpdesk/Training). Supported versions that are affected are 17.0-26.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel Apps - Self Service. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Siebel Apps - Self Service, 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 Apps - Self Service accessible data as well as unauthorized access to critical data or complete access to all Siebel Apps - Self Service accessible data. CVSS 3.1 Base Score 9.3 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N).
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.
Affected products
References
- secalert_us@oracle.com (vendor-advisory)
Frequently asked questions
- What is CVE-2026-70855?
- CVE-2026-70855 is a critical-severity vulnerability in Oracle Corporation Siebel Apps - Self Service. CVSS score: 9.3/10. Published 2026-08-18.
- How severe is CVE-2026-70855?
- Critical severity. CVSS v3 base score is 9.3 out of 10.