CVE-2026-101455 in Siebel CRM Development
Summary
by MITRE • 10/20/2026
Vulnerability in the Siebel CRM Development product of Oracle Siebel CRM (component: Integration - Scripting). Supported versions that are affected are 17.0-26.9. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Siebel CRM Development executes to compromise Siebel CRM Development. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Development accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Development accessible data. CVSS 3.1 Base Score 6.3 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Siebel CRM Development component of Oracle Siebel CRM, specifically affecting versions ranging from 17.0 through 26.9. This security flaw is categorized under Integration - Scripting, indicating that the weakness lies in how the system processes or executes scripts used for integration purposes. The nature of this vulnerability allows a low-privileged attacker who has established logon access to the infrastructure hosting Siebel CRM Development to compromise the application environment. While the exploitation difficulty is rated as high due to specific environmental prerequisites, the potential impact on confidentiality and integrity is significant, resulting in a CVSS 3.1 base score of 6.3. This scoring reflects that while availability remains unaffected, an attacker can achieve unauthorized creation, deletion, or modification of critical data, as well as gain complete access to all Siebel CRM Development accessible data.
From a technical perspective, the vulnerability likely stems from insufficient validation or sanitization mechanisms within the scripting engine used for integration tasks. When scripts are executed on the server side, they may interact with underlying file systems, databases, or application logic without adequate privilege separation checks. An attacker leveraging this flaw can manipulate script inputs to execute unintended commands or access restricted resources. This aligns closely with CWE-94, which describes Improper Control of Generation of Code (Code Injection), and potentially CWE-20, which pertains to Improper Input Validation. The ability to modify critical data suggests a breach in integrity controls, allowing the attacker to alter business-critical records within the CRM system. This could lead to severe operational disruptions, financial loss, or regulatory non-compliance depending on the sensitivity of the stored customer and transactional data.
The attack vector for this vulnerability is classified as Local with High Complexity and requires Low Privileges. In terms of MITRE ATT&CK mapping, this scenario corresponds to techniques involving Initial Access via valid accounts followed by Execution through script interpretation or command injection. The requirement for logon access means the attacker must first compromise a user account on the infrastructure where Siebel CRM Development runs. Once inside, the high complexity suggests that successful exploitation may require specific conditions, such as particular file permissions, network configurations, or timing constraints related to how scripts are loaded and executed by the application server. Despite these barriers, the lack of required user interaction simplifies the attack path once local access is obtained, making it a persistent threat for environments with weak internal segmentation policies.
To mitigate this vulnerability, organizations should prioritize applying the latest security patches provided by Oracle for Siebel CRM versions 17.0 to 26.9. It is crucial to ensure that all integration scripts are reviewed and hardened against injection attacks, adhering strictly to secure coding practices such as input validation and output encoding. Access controls must be rigorously enforced so that only authorized personnel can deploy or modify integration scripts within the development environment. Additionally, implementing strict network segmentation between development infrastructure and production databases limits the blast radius of any successful exploitation. Regular audits of user privileges are recommended to ensure that low-privileged accounts do not possess unnecessary write access to critical directories or database schemas used by the scripting engine. Monitoring for anomalous script execution patterns can also aid in early detection of potential exploitation attempts before significant data compromise occurs.