CVE-2026-61339 in Siebel CRM Cloud Applications
Summary
by MITRE • 08/19/2026
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 low privileged attacker with logon to the infrastructure where Siebel CRM Cloud Applications executes to compromise Siebel CRM Cloud Applications. While the vulnerability is in Siebel CRM Cloud Applications, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel CRM Cloud Applications accessible data as well as unauthorized update, insert or delete access to some of Siebel CRM Cloud Applications accessible data. CVSS 3.1 Base Score 7.3 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N).
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Analysis
by VulDB Data Team • 08/19/2026
The identified vulnerability resides within the Siebel Cloud Manager component of Oracle Siebel CRM, specifically affecting supported versions ranging from 22.3 through 26.6. This security flaw represents a significant risk to organizations relying on this enterprise customer relationship management platform for critical business operations. The core issue stems from an architectural weakness that permits low-privileged attackers who have already established logon access to the underlying infrastructure hosting Siebel CRM Cloud Applications to exploit the system. Unlike vulnerabilities requiring high-level privileges or user interaction, this flaw can be triggered by authenticated users with minimal initial access rights, thereby lowering the barrier for exploitation and increasing the likelihood of successful attacks in environments where least-privilege principles may not be strictly enforced across all infrastructure layers.
The technical nature of this vulnerability allows an attacker to compromise the integrity and confidentiality of the Siebel CRM Cloud Applications environment. Upon successful exploitation, the attacker gains unauthorized access to critical data stored within the application. This includes sensitive customer information, financial records, and proprietary business intelligence that are central to the organization's operations. Furthermore, the flaw enables unauthorized modifications to this data, allowing attackers to insert new records, update existing entries, or delete crucial datasets. These actions directly undermine the integrity of the system, potentially leading to corrupted reports, manipulated analytics, and disrupted workflow processes. The ability to alter data without authorization poses a severe threat to operational continuity and regulatory compliance.
A critical aspect of this vulnerability is its potential for scope change, meaning that attacks targeting Siebel CRM Cloud Applications can significantly impact additional products within the broader Oracle ecosystem or connected infrastructure. This lateral movement capability amplifies the overall risk profile, as compromising one component may serve as a foothold for attacking adjacent systems. The operational impact extends beyond immediate data loss to include long-term reputational damage and potential financial penalties resulting from non-compliance with data protection regulations such as GDPR or CCPA. The CVSS 3.1 base score of 7.3 reflects the high severity associated with these confidentiality and integrity impacts, indicating that remediation should be prioritized alongside other critical security patches.
To mitigate this vulnerability, organizations must implement a multi-layered defense strategy. First, immediate patching to the latest supported version of Oracle Siebel CRM is essential to address the underlying code flaw in the Cloud Manager component. In addition to software updates, strict access control policies should be enforced to ensure that only authorized personnel have logon access to the infrastructure hosting these applications. Network segmentation can help isolate critical systems from less secure zones, limiting an attacker's ability to move laterally even if they gain initial foothold. Regular audits of user privileges and monitoring for anomalous data access patterns are also recommended to detect potential exploitation attempts early. Aligning with industry standards such as CWE-269 for Improper Privilege Management and ATT&CK techniques related to lateral movement will further strengthen the security posture against similar threats in the future.