CVE-2026-83203
HighCVSS 8.6Exploitation Probability (EPSS)
Low risk31th percentile - higher than 31% of all known CVEs
Summary
Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI) affecting versions 17.0-26.7. Easily exploitable by an unauthenticated attacker with network access via HTTP. Successful attacks can result in unauthorized access to critical data, unauthorized data modifications, and partial DOS.
Risk Assessment
An unauthenticated attacker can access critical data, modify it, and cause partial DOS in the Siebel CRM End User component. The CVSS score of 8.6 indicates very high risk.
Recommendation
Immediately apply Oracle patches for versions 17.0-26.7 and restrict HTTP access to the Open UI component. Monitor for unusual requests and unauthorized access attempts.
Other vulnerabilities in Oracle Siebel CRM
See all- CVE-2026-83212High
Vulnerability in the Siebel Apps - Self Service product of Oracle Siebel CRM (component: Helpdesk/Training) affecting versions 17.0-26.7. Easily exploitable by a low privileged attacker with network access via HTTP. Successful attacks can result in takeover of the application.
- CVE-2026-83211High
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure) affecting versions 17.0-26.7. Easily exploitable by a low privileged attacker with logon to the infrastructure where the component executes. Successful attacks can result in takeover of the component.
- CVE-2026-83210High
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure) affecting versions 17.0-26.7. Easily exploitable by a low privileged attacker with network access via SQL. Successful attacks can result in takeover of the component.
- CVE-2026-83209High
Vulnerability in the Siebel CRM Development product of Oracle Siebel CRM (component: Workflow) affecting versions 17.0-26.7. Easily exploitable by a low privileged attacker with network access via HTTP. Successful attacks can result in takeover of the component.
- CVE-2026-83208High
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Migration) affecting versions 17.0-26.7. Easily exploitable by a low privileged attacker with network access via SQL. Successful attacks can result in takeover of the component.
- CVE-2026-83207High
Vulnerability in the Siebel CRM Development product of Oracle Siebel CRM (component: Integration - Scripting) affecting versions 17.0-26.7. Easily exploitable by a low privileged attacker with network access via HTTP. Successful attacks can cause a hang or frequently repeatable crash (complete DOS), unauthorized update, insert or delete access, and unauthorized read access.
- CVE-2026-83193High
Vulnerability in Oracle Siebel CRM's Siebel Apps - Life Sciences (component: Life Sciences) affecting versions 17.0-26.7. An easily exploitable flaw allows a low-privileged attacker with logon access to the infrastructure to compromise the system, requiring user interaction.
- CVE-2026-83192High
Vulnerability in Oracle Siebel CRM End User (component: Open UI) affecting versions 17.0-26.7. A difficult-to-exploit flaw allows an unauthenticated attacker with network access via HTTP to compromise Siebel CRM End User.
- CVE-2026-83155High
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure) affecting versions 17.0-26.7. A low-privileged attacker with access to the physical communication segment can access critical data and cause hangs or repeatable crashes (DoS).
- CVE-2026-83153High
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure) affecting versions 17.0-26.7. A low-privileged attacker with network access via HTTPS can take over Siebel CRM Deployment.
Original NVD description (English source)
Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM End User. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM End User accessible data as well as unauthorized update, insert or delete access to some of Siebel CRM End User accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Siebel CRM End User. CVSS 3.1 Base Score 8.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

